Infectious Diseases

SEATTLE – Almost a third of patients who developed HIV while on pre-exposure prophylaxis (PrEP) had strains that were resistant to emtricitabine – a component of the PrEP medication Truvada along with tenofovir – at time of diagnosis, compared with just 2% of those not on PrEP, in a review of more than 3,500 newly diagnosed HIV cases in New York.

M. Alexander Otto/MDedge News

The finding points to a growing concern as use of PrEP becomes more common: the induction of resistance to HIV treatments.

PrEP is highly effective, so it’s likely that the PrEP patients already had HIV when they started treatment. Nucleic acid amplification testing (NAAT) is the only way to rule it out definitively, but only 5% of PrEP users in the study were screened with NAAT within 2 days of initiation.

The usual test – HIV antibody screening – returns a false negative in the window between HIV exposure and active infection, when antibodies turn positive, which can take months. NAAT, on the other hand, looks for evidence of the virus directly.

The findings led the investigators to urge routine NAAT screening before PrEP, something that New York State guidelines currently recommend only if patients present with symptoms of acute HIV infection or report condomless sex in the previous 4 weeks.

To prevent drug resistance, “rigorous screening that includes NAAT is critical.” It reduces “the likelihood of PrEP start during undetected HIV infection,” said lead investigator Kavita Misra, PhD, MPH, a senior epidemiologist at the New York City Department of Health and Mental Hygiene.

Her team reviewed 3,685 people in New York who were diagnosed with HIV from November 2015 to August 2017; 91 had been on PrEP beforehand for a median of 106 days.

Postdiagnosis genotyping was available for 75% of PrEP users and 63% in the no-PrEP group. Resistance mutations to emtricitabine were significantly more prevalent with PrEP than without (29% versus 2%, respectively; P less than .0001). None of the PrEP users, but four in the no-PrEP group, had resistance to the other component of Truvada, tenofovir.

PrEP users were more likely to be diagnosed with HIV in the acute phase of infection than were those not using PrEP (33% versus 9%; P less than .0001), probably because they were also more likely to have regular office visits while on PrEP.

Skeptics at the Conference on Retroviruses and Opportunistic Infections, where the study was presented, wondered whether emtricitabine resistance would have been more common in the no-PrEP group if the infection had been picked up earlier because resistance fades as the infection progresses.

Dr. Misra said it was a good question and that her team will look into it. However, she stood by her conclusions.

PrEP use was most common among white men who have sex with men and among people under 30 years old.

There was no external funding, and the investigators didn’t have any disclosures.

[email protected]

SOURCE: Misra K et al. 2019 CROI, Abstract 107.

SEATTLE – Almost a third of patients who developed HIV while on pre-exposure prophylaxis (PrEP) had strains that were resistant to emtricitabine – a component of the PrEP medication Truvada along with tenofovir – at time of diagnosis, compared with just 2% of those not on PrEP, in a review of more than 3,500 newly diagnosed HIV cases in New York.

M. Alexander Otto/MDedge News

The finding points to a growing concern as use of PrEP becomes more common: the induction of resistance to HIV treatments.

PrEP is highly effective, so it’s likely that the PrEP patients already had HIV when they started treatment. Nucleic acid amplification testing (NAAT) is the only way to rule it out definitively, but only 5% of PrEP users in the study were screened with NAAT within 2 days of initiation.

The usual test – HIV antibody screening – returns a false negative in the window between HIV exposure and active infection, when antibodies turn positive, which can take months. NAAT, on the other hand, looks for evidence of the virus directly.

The findings led the investigators to urge routine NAAT screening before PrEP, something that New York State guidelines currently recommend only if patients present with symptoms of acute HIV infection or report condomless sex in the previous 4 weeks.

To prevent drug resistance, “rigorous screening that includes NAAT is critical.” It reduces “the likelihood of PrEP start during undetected HIV infection,” said lead investigator Kavita Misra, PhD, MPH, a senior epidemiologist at the New York City Department of Health and Mental Hygiene.

Her team reviewed 3,685 people in New York who were diagnosed with HIV from November 2015 to August 2017; 91 had been on PrEP beforehand for a median of 106 days.

Postdiagnosis genotyping was available for 75% of PrEP users and 63% in the no-PrEP group. Resistance mutations to emtricitabine were significantly more prevalent with PrEP than without (29% versus 2%, respectively; P less than .0001). None of the PrEP users, but four in the no-PrEP group, had resistance to the other component of Truvada, tenofovir.

PrEP users were more likely to be diagnosed with HIV in the acute phase of infection than were those not using PrEP (33% versus 9%; P less than .0001), probably because they were also more likely to have regular office visits while on PrEP.

Skeptics at the Conference on Retroviruses and Opportunistic Infections, where the study was presented, wondered whether emtricitabine resistance would have been more common in the no-PrEP group if the infection had been picked up earlier because resistance fades as the infection progresses.

Dr. Misra said it was a good question and that her team will look into it. However, she stood by her conclusions.

PrEP use was most common among white men who have sex with men and among people under 30 years old.

There was no external funding, and the investigators didn’t have any disclosures.

[email protected]

SOURCE: Misra K et al. 2019 CROI, Abstract 107.

SEATTLE – Almost a third of patients who developed HIV while on pre-exposure prophylaxis (PrEP) had strains that were resistant to emtricitabine – a component of the PrEP medication Truvada along with tenofovir – at time of diagnosis, compared with just 2% of those not on PrEP, in a review of more than 3,500 newly diagnosed HIV cases in New York.

M. Alexander Otto/MDedge News

The finding points to a growing concern as use of PrEP becomes more common: the induction of resistance to HIV treatments.

PrEP is highly effective, so it’s likely that the PrEP patients already had HIV when they started treatment. Nucleic acid amplification testing (NAAT) is the only way to rule it out definitively, but only 5% of PrEP users in the study were screened with NAAT within 2 days of initiation.

The usual test – HIV antibody screening – returns a false negative in the window between HIV exposure and active infection, when antibodies turn positive, which can take months. NAAT, on the other hand, looks for evidence of the virus directly.

The findings led the investigators to urge routine NAAT screening before PrEP, something that New York State guidelines currently recommend only if patients present with symptoms of acute HIV infection or report condomless sex in the previous 4 weeks.

To prevent drug resistance, “rigorous screening that includes NAAT is critical.” It reduces “the likelihood of PrEP start during undetected HIV infection,” said lead investigator Kavita Misra, PhD, MPH, a senior epidemiologist at the New York City Department of Health and Mental Hygiene.

Her team reviewed 3,685 people in New York who were diagnosed with HIV from November 2015 to August 2017; 91 had been on PrEP beforehand for a median of 106 days.

Postdiagnosis genotyping was available for 75% of PrEP users and 63% in the no-PrEP group. Resistance mutations to emtricitabine were significantly more prevalent with PrEP than without (29% versus 2%, respectively; P less than .0001). None of the PrEP users, but four in the no-PrEP group, had resistance to the other component of Truvada, tenofovir.

PrEP users were more likely to be diagnosed with HIV in the acute phase of infection than were those not using PrEP (33% versus 9%; P less than .0001), probably because they were also more likely to have regular office visits while on PrEP.

Skeptics at the Conference on Retroviruses and Opportunistic Infections, where the study was presented, wondered whether emtricitabine resistance would have been more common in the no-PrEP group if the infection had been picked up earlier because resistance fades as the infection progresses.

Dr. Misra said it was a good question and that her team will look into it. However, she stood by her conclusions.

PrEP use was most common among white men who have sex with men and among people under 30 years old.

There was no external funding, and the investigators didn’t have any disclosures.

[email protected]

SOURCE: Misra K et al. 2019 CROI, Abstract 107.

A 9-day-old boy was brought to the emergency department by his mother. The infant had been doing well until his most recent diaper change when his mother noticed a rash around the umbilicus (FIGURE), genitalia, and anus.

The infant was born at term via spontaneous vaginal delivery. The pregnancy was uncomplicated; the infant’s mother was group B strep negative. Following a routine postpartum course, the infant underwent an elective circumcision before hospital discharge on his second day of life. There were no interval reports of irritability, poor feeding, fevers, vomiting, or changes in urine or stool output.

The mother denied any recent unusual exposures, sick contacts, or travel. However, upon further questioning, the mother noted that she herself had several small open wounds on the torso that she attributed to untreated methicillin-resistant Staphylococcus aureus (MRSA).

On physical examination, the infant was overall well-appearing and was breastfeeding vigorously without respiratory distress or cyanosis. He was afebrile with normal vital signs. The majority of the physical examination was normal; however, there was erythematous desquamation around the umbilical stump and genitalia with no vesicles noted. The umbilical stump had a small amount of purulent drainage and necrosis centrally. The infant had a 1-cm round, peeling lesion on the left temple (FIGURE) with a small amount of dried serosanguinous drainage and similar superficial peeling lesions at the left preauricular area and anterior chest. There was no underlying fluctuance and only minimal surrounding erythema.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

Based on the age of the patient, clinical presentation, and suspected maternal MRSA infection (with possible transmission to the infant), we diagnosed staphylococcal scalded skin syndrome (SSSS) in this patient. SSSS is rare, with annual incidence of 45 cases per million US infants under the age of 2.¹ Newborns with a generalized form of SSSS commonly present with fever, poor feeding, irritability, and lethargy. This is followed by a generalized erythematous rash that initially may appear on the head and neck and spread to the rest of the body. Large, fragile blisters subsequently appear. These blisters rupture on gentle pressure, which is known as a positive Nikolsky sign. Ultimately, large sheets of skin easily slough off, leaving raw, denuded skin.²

S aureus is not part of normal skin flora, yet it is found on the skin and mucous membranes of 19% to 55% of healthy adults and children.³S aureus can cause a wide range of infections ranging from abscesses to cellulitis; SSSS is caused by hematogenous spread of S aureus exfoliative toxin. Newborns and immunocompromised patients are particularly susceptible.

Staphylococcal scalded skin syndrome should be considered a pediatric emergency due to potential complications such as sepsis.

Neonatal patients with SSSS most commonly present at 3 to 16 days of age.² The lack of antitoxin antibody in neonates allows the toxin to reach the epidermis where it acts locally to produce the characteristic fragile skin lesions that often rupture prior to clinical presentation.^2,4 During progression of the disease, flaky skin desquamation will occur as the lesions heal.

A retrospective review of 39 cases of SSSS identified pneumonia as the most frequent complication, occurring in 74.4% of the cases.⁵ The mortality rate of SSSS is up to 5%, and is associated with sepsis, superinfection, electrolyte imbalances, and extensive skin involvement.^2,6

If SSSS is suspected, obtain cultures from the blood, urine, eyes, nose, throat, and skin lesions to identify the primary focus of infection.⁷ However, the retrospective review of 39 cases (noted above) found a positive rate of S aureus isolation of only 23.5%.⁵ Physicians will often have to make a diagnosis based on clinical presentation and empirically initiate broad-spectrum antibiotics while considering alternative diagnoses.

Continue to: A clinical diagnosis with a large differential

A clinical diagnosis with a large differential

While biopsy rarely is required, it may be helpful to distinguish SSSS from other entities in the differential diagnosis (TABLE^2,3,7-13).

Toxic epidermal necrolysis (TEN) is a rare and life-threatening desquamating disease nearly always caused by a reaction to medications, including antibiotics. TEN can occur at any age. Fever, diffuse erythema, and extensive epidermal involvement (>30% of skin) differentiate TEN from Stevens-Johnson syndrome (SJS), which affects less than 10% of the epidermis. It is worth mentioning that TEN and SJS are now considered to be a spectrum of one disease, and an overlap syndrome has been described with 10% to 30% of skin affected.⁸ Diagnosis is made clinically, although skin biopsy routinely is performed.^7,9

Congenital syphilis features a red or pink maculopapular rash followed by desquamation. Lesions are more common on the soles.¹⁰ Desquamation or ulcerative skin lesions should be examined for spirochetes.¹¹ A quantitative, nontreponemal test such as the rapid plasma reagin (RPR) or the Venereal Disease Research Laboratory (VDRL) will be positive in most infants if exposed through the placenta, but antibodies will disappear in uninfected infants by 6 months of age.⁸

Congenital cutaneous candidiasis presents with a generalized eruption of erythematous macules, papules, and/or pustules with widespread desquamating and/or erosive dermatitis. Premature neonates with extremely low birth weight are at higher risk.¹³ Diagnosis is confirmed on microscopy by the presence of Candida albicans spores in skin scrapings.¹³

Neonatal herpes simplex virus (HSV) symptoms typically appear between 1 and 3 weeks of life, with 60% to 70% of cases presenting with classic clustering vesicles on an erythematous base.¹⁴ Diagnosis is made with HSV viral culture or polymerase chain reaction (PCR).

Continue to: SSSS should be considered a pediatrics emergency

SSSS should be considered a pediatric emergency due to potential complications. Core measures of SSSS treatment include immediate administration of intravenous (IV) antibiotics. US population studies suggest clindamycin and penicillinase-resistant penicillin as empiric therapy.¹⁵ However, local strains and resistance patterns, including the prevalence of MRSA, as well as age, comorbidities, and severity of illness should influence antibiotic selection.

IV nafcillin or oxacillin may be used with pediatric dosing of 150 mg/kg daily divided every 6 hours for methicillin-sensitive Staphylococcus aureus (MSSA). For suspected MRSA, IV vancomycin should be considered, with an infant dose of 40 to 60 mg/kg daily divided every 6 hours.¹⁶ Fluid, electrolyte, and nutritional management should be addressed immediately. Ongoing fluid losses due to exfoliated skin must be replaced, and skin care to desquamated areas also should be addressed urgently.

Our patient. Phone consultation with an infectious disease specialist at a local children’s hospital resulted in a recommendation to treat for sepsis empirically with IV vancomycin, cefotaxime, and acyclovir. Acyclovir was discontinued once the HSV PCR came back negative. The antibiotic coverage was narrowed to IV ampicillin 50 mg/kg every 8 hours when cerebrospinal fluid and blood cultures returned negative at 48 hours, wound culture sensitivity grew MSSA, and the patient’s clinical condition stabilized. Our patient received 10 days of IV antibiotics and was discharged on oral amoxicillin 50 mg/kg divided twice daily for a total of 14 days of treatment per recommendations by the infectious disease specialist. Our patient fully recovered without any residual skin findings after completion of the antibiotic course.

CORRESPONDENCE
Jennifer J. Walker, MD, MPH, Hawaii Island Family Health Center at Hilo Medical Center, 1190 Waianuenue Ave, Hilo, HI 96720; [email protected]

A 9-day-old boy was brought to the emergency department by his mother. The infant had been doing well until his most recent diaper change when his mother noticed a rash around the umbilicus (FIGURE), genitalia, and anus.

The infant was born at term via spontaneous vaginal delivery. The pregnancy was uncomplicated; the infant’s mother was group B strep negative. Following a routine postpartum course, the infant underwent an elective circumcision before hospital discharge on his second day of life. There were no interval reports of irritability, poor feeding, fevers, vomiting, or changes in urine or stool output.

The mother denied any recent unusual exposures, sick contacts, or travel. However, upon further questioning, the mother noted that she herself had several small open wounds on the torso that she attributed to untreated methicillin-resistant Staphylococcus aureus (MRSA).

On physical examination, the infant was overall well-appearing and was breastfeeding vigorously without respiratory distress or cyanosis. He was afebrile with normal vital signs. The majority of the physical examination was normal; however, there was erythematous desquamation around the umbilical stump and genitalia with no vesicles noted. The umbilical stump had a small amount of purulent drainage and necrosis centrally. The infant had a 1-cm round, peeling lesion on the left temple (FIGURE) with a small amount of dried serosanguinous drainage and similar superficial peeling lesions at the left preauricular area and anterior chest. There was no underlying fluctuance and only minimal surrounding erythema.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

Based on the age of the patient, clinical presentation, and suspected maternal MRSA infection (with possible transmission to the infant), we diagnosed staphylococcal scalded skin syndrome (SSSS) in this patient. SSSS is rare, with annual incidence of 45 cases per million US infants under the age of 2.¹ Newborns with a generalized form of SSSS commonly present with fever, poor feeding, irritability, and lethargy. This is followed by a generalized erythematous rash that initially may appear on the head and neck and spread to the rest of the body. Large, fragile blisters subsequently appear. These blisters rupture on gentle pressure, which is known as a positive Nikolsky sign. Ultimately, large sheets of skin easily slough off, leaving raw, denuded skin.²

S aureus is not part of normal skin flora, yet it is found on the skin and mucous membranes of 19% to 55% of healthy adults and children.³S aureus can cause a wide range of infections ranging from abscesses to cellulitis; SSSS is caused by hematogenous spread of S aureus exfoliative toxin. Newborns and immunocompromised patients are particularly susceptible.

Staphylococcal scalded skin syndrome should be considered a pediatric emergency due to potential complications such as sepsis.

Neonatal patients with SSSS most commonly present at 3 to 16 days of age.² The lack of antitoxin antibody in neonates allows the toxin to reach the epidermis where it acts locally to produce the characteristic fragile skin lesions that often rupture prior to clinical presentation.^2,4 During progression of the disease, flaky skin desquamation will occur as the lesions heal.

A retrospective review of 39 cases of SSSS identified pneumonia as the most frequent complication, occurring in 74.4% of the cases.⁵ The mortality rate of SSSS is up to 5%, and is associated with sepsis, superinfection, electrolyte imbalances, and extensive skin involvement.^2,6

If SSSS is suspected, obtain cultures from the blood, urine, eyes, nose, throat, and skin lesions to identify the primary focus of infection.⁷ However, the retrospective review of 39 cases (noted above) found a positive rate of S aureus isolation of only 23.5%.⁵ Physicians will often have to make a diagnosis based on clinical presentation and empirically initiate broad-spectrum antibiotics while considering alternative diagnoses.

Continue to: A clinical diagnosis with a large differential

A clinical diagnosis with a large differential

While biopsy rarely is required, it may be helpful to distinguish SSSS from other entities in the differential diagnosis (TABLE^2,3,7-13).

Toxic epidermal necrolysis (TEN) is a rare and life-threatening desquamating disease nearly always caused by a reaction to medications, including antibiotics. TEN can occur at any age. Fever, diffuse erythema, and extensive epidermal involvement (>30% of skin) differentiate TEN from Stevens-Johnson syndrome (SJS), which affects less than 10% of the epidermis. It is worth mentioning that TEN and SJS are now considered to be a spectrum of one disease, and an overlap syndrome has been described with 10% to 30% of skin affected.⁸ Diagnosis is made clinically, although skin biopsy routinely is performed.^7,9

Congenital syphilis features a red or pink maculopapular rash followed by desquamation. Lesions are more common on the soles.¹⁰ Desquamation or ulcerative skin lesions should be examined for spirochetes.¹¹ A quantitative, nontreponemal test such as the rapid plasma reagin (RPR) or the Venereal Disease Research Laboratory (VDRL) will be positive in most infants if exposed through the placenta, but antibodies will disappear in uninfected infants by 6 months of age.⁸

Congenital cutaneous candidiasis presents with a generalized eruption of erythematous macules, papules, and/or pustules with widespread desquamating and/or erosive dermatitis. Premature neonates with extremely low birth weight are at higher risk.¹³ Diagnosis is confirmed on microscopy by the presence of Candida albicans spores in skin scrapings.¹³

Neonatal herpes simplex virus (HSV) symptoms typically appear between 1 and 3 weeks of life, with 60% to 70% of cases presenting with classic clustering vesicles on an erythematous base.¹⁴ Diagnosis is made with HSV viral culture or polymerase chain reaction (PCR).

Continue to: SSSS should be considered a pediatrics emergency

SSSS should be considered a pediatric emergency due to potential complications. Core measures of SSSS treatment include immediate administration of intravenous (IV) antibiotics. US population studies suggest clindamycin and penicillinase-resistant penicillin as empiric therapy.¹⁵ However, local strains and resistance patterns, including the prevalence of MRSA, as well as age, comorbidities, and severity of illness should influence antibiotic selection.

IV nafcillin or oxacillin may be used with pediatric dosing of 150 mg/kg daily divided every 6 hours for methicillin-sensitive Staphylococcus aureus (MSSA). For suspected MRSA, IV vancomycin should be considered, with an infant dose of 40 to 60 mg/kg daily divided every 6 hours.¹⁶ Fluid, electrolyte, and nutritional management should be addressed immediately. Ongoing fluid losses due to exfoliated skin must be replaced, and skin care to desquamated areas also should be addressed urgently.

Our patient. Phone consultation with an infectious disease specialist at a local children’s hospital resulted in a recommendation to treat for sepsis empirically with IV vancomycin, cefotaxime, and acyclovir. Acyclovir was discontinued once the HSV PCR came back negative. The antibiotic coverage was narrowed to IV ampicillin 50 mg/kg every 8 hours when cerebrospinal fluid and blood cultures returned negative at 48 hours, wound culture sensitivity grew MSSA, and the patient’s clinical condition stabilized. Our patient received 10 days of IV antibiotics and was discharged on oral amoxicillin 50 mg/kg divided twice daily for a total of 14 days of treatment per recommendations by the infectious disease specialist. Our patient fully recovered without any residual skin findings after completion of the antibiotic course.

CORRESPONDENCE
Jennifer J. Walker, MD, MPH, Hawaii Island Family Health Center at Hilo Medical Center, 1190 Waianuenue Ave, Hilo, HI 96720; [email protected]

A 9-day-old boy was brought to the emergency department by his mother. The infant had been doing well until his most recent diaper change when his mother noticed a rash around the umbilicus (FIGURE), genitalia, and anus.

The infant was born at term via spontaneous vaginal delivery. The pregnancy was uncomplicated; the infant’s mother was group B strep negative. Following a routine postpartum course, the infant underwent an elective circumcision before hospital discharge on his second day of life. There were no interval reports of irritability, poor feeding, fevers, vomiting, or changes in urine or stool output.

The mother denied any recent unusual exposures, sick contacts, or travel. However, upon further questioning, the mother noted that she herself had several small open wounds on the torso that she attributed to untreated methicillin-resistant Staphylococcus aureus (MRSA).

On physical examination, the infant was overall well-appearing and was breastfeeding vigorously without respiratory distress or cyanosis. He was afebrile with normal vital signs. The majority of the physical examination was normal; however, there was erythematous desquamation around the umbilical stump and genitalia with no vesicles noted. The umbilical stump had a small amount of purulent drainage and necrosis centrally. The infant had a 1-cm round, peeling lesion on the left temple (FIGURE) with a small amount of dried serosanguinous drainage and similar superficial peeling lesions at the left preauricular area and anterior chest. There was no underlying fluctuance and only minimal surrounding erythema.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

Based on the age of the patient, clinical presentation, and suspected maternal MRSA infection (with possible transmission to the infant), we diagnosed staphylococcal scalded skin syndrome (SSSS) in this patient. SSSS is rare, with annual incidence of 45 cases per million US infants under the age of 2.¹ Newborns with a generalized form of SSSS commonly present with fever, poor feeding, irritability, and lethargy. This is followed by a generalized erythematous rash that initially may appear on the head and neck and spread to the rest of the body. Large, fragile blisters subsequently appear. These blisters rupture on gentle pressure, which is known as a positive Nikolsky sign. Ultimately, large sheets of skin easily slough off, leaving raw, denuded skin.²

S aureus is not part of normal skin flora, yet it is found on the skin and mucous membranes of 19% to 55% of healthy adults and children.³S aureus can cause a wide range of infections ranging from abscesses to cellulitis; SSSS is caused by hematogenous spread of S aureus exfoliative toxin. Newborns and immunocompromised patients are particularly susceptible.

Staphylococcal scalded skin syndrome should be considered a pediatric emergency due to potential complications such as sepsis.

Neonatal patients with SSSS most commonly present at 3 to 16 days of age.² The lack of antitoxin antibody in neonates allows the toxin to reach the epidermis where it acts locally to produce the characteristic fragile skin lesions that often rupture prior to clinical presentation.^2,4 During progression of the disease, flaky skin desquamation will occur as the lesions heal.

A retrospective review of 39 cases of SSSS identified pneumonia as the most frequent complication, occurring in 74.4% of the cases.⁵ The mortality rate of SSSS is up to 5%, and is associated with sepsis, superinfection, electrolyte imbalances, and extensive skin involvement.^2,6

If SSSS is suspected, obtain cultures from the blood, urine, eyes, nose, throat, and skin lesions to identify the primary focus of infection.⁷ However, the retrospective review of 39 cases (noted above) found a positive rate of S aureus isolation of only 23.5%.⁵ Physicians will often have to make a diagnosis based on clinical presentation and empirically initiate broad-spectrum antibiotics while considering alternative diagnoses.

Continue to: A clinical diagnosis with a large differential

A clinical diagnosis with a large differential

While biopsy rarely is required, it may be helpful to distinguish SSSS from other entities in the differential diagnosis (TABLE^2,3,7-13).

Toxic epidermal necrolysis (TEN) is a rare and life-threatening desquamating disease nearly always caused by a reaction to medications, including antibiotics. TEN can occur at any age. Fever, diffuse erythema, and extensive epidermal involvement (>30% of skin) differentiate TEN from Stevens-Johnson syndrome (SJS), which affects less than 10% of the epidermis. It is worth mentioning that TEN and SJS are now considered to be a spectrum of one disease, and an overlap syndrome has been described with 10% to 30% of skin affected.⁸ Diagnosis is made clinically, although skin biopsy routinely is performed.^7,9

Congenital syphilis features a red or pink maculopapular rash followed by desquamation. Lesions are more common on the soles.¹⁰ Desquamation or ulcerative skin lesions should be examined for spirochetes.¹¹ A quantitative, nontreponemal test such as the rapid plasma reagin (RPR) or the Venereal Disease Research Laboratory (VDRL) will be positive in most infants if exposed through the placenta, but antibodies will disappear in uninfected infants by 6 months of age.⁸

Congenital cutaneous candidiasis presents with a generalized eruption of erythematous macules, papules, and/or pustules with widespread desquamating and/or erosive dermatitis. Premature neonates with extremely low birth weight are at higher risk.¹³ Diagnosis is confirmed on microscopy by the presence of Candida albicans spores in skin scrapings.¹³

Neonatal herpes simplex virus (HSV) symptoms typically appear between 1 and 3 weeks of life, with 60% to 70% of cases presenting with classic clustering vesicles on an erythematous base.¹⁴ Diagnosis is made with HSV viral culture or polymerase chain reaction (PCR).

Continue to: SSSS should be considered a pediatrics emergency

SSSS should be considered a pediatric emergency due to potential complications. Core measures of SSSS treatment include immediate administration of intravenous (IV) antibiotics. US population studies suggest clindamycin and penicillinase-resistant penicillin as empiric therapy.¹⁵ However, local strains and resistance patterns, including the prevalence of MRSA, as well as age, comorbidities, and severity of illness should influence antibiotic selection.

IV nafcillin or oxacillin may be used with pediatric dosing of 150 mg/kg daily divided every 6 hours for methicillin-sensitive Staphylococcus aureus (MSSA). For suspected MRSA, IV vancomycin should be considered, with an infant dose of 40 to 60 mg/kg daily divided every 6 hours.¹⁶ Fluid, electrolyte, and nutritional management should be addressed immediately. Ongoing fluid losses due to exfoliated skin must be replaced, and skin care to desquamated areas also should be addressed urgently.

Our patient. Phone consultation with an infectious disease specialist at a local children’s hospital resulted in a recommendation to treat for sepsis empirically with IV vancomycin, cefotaxime, and acyclovir. Acyclovir was discontinued once the HSV PCR came back negative. The antibiotic coverage was narrowed to IV ampicillin 50 mg/kg every 8 hours when cerebrospinal fluid and blood cultures returned negative at 48 hours, wound culture sensitivity grew MSSA, and the patient’s clinical condition stabilized. Our patient received 10 days of IV antibiotics and was discharged on oral amoxicillin 50 mg/kg divided twice daily for a total of 14 days of treatment per recommendations by the infectious disease specialist. Our patient fully recovered without any residual skin findings after completion of the antibiotic course.

CORRESPONDENCE
Jennifer J. Walker, MD, MPH, Hawaii Island Family Health Center at Hilo Medical Center, 1190 Waianuenue Ave, Hilo, HI 96720; [email protected]

THE CASE

A 78-year-old woman with a history of anxiety and hypertension presented to our family medicine residency practice in Massachusetts with subacute polyarticular arthralgias that had been present for 2 months. She complained of pain and swelling of both ankles and the right knee. She noted that her symptoms had started on a recent trip to the Dominican Republic, where she developed generalized joint pain and a fever that lasted 1 to 2 weeks and subsequently resolved with the lingering polyarthralgias. She denied any rash, constitutional symptoms, photosensitivity, headaches, photophobia, or history of tick bite. Physical examination revealed normal vital signs, notable warmth and swelling of the bilateral ankles that was worse on the right side, and swelling of the right knee with effusion—but no tenderness—to palpation.

THE DIAGNOSIS

The patient’s labwork revealed a white blood cell count of 5900/mcL (reference range, 4500–11,000/mcL), hemoglobin count of 12.5 g/dL (reference range, 14–17.5 g/dL), and a platelet count of 230×10³/mcL. Electrolytes and renal function were normal. She had an elevated erythrocyte sedimentation rate of 34 mm/h (reference range, 0–20 mm/h) and a positive antinuclear antibody (ANA) test, but no titer was reported. Anti-chikungunya IgG and IgM antibodies were positive on enzyme-linked immunosorbent assay (ELISA) serologic testing.

DISCUSSION

Chikungunya is an infectious disease that is relatively rare in the United States. Chikungunya was rarely identified in American travelers prior to 2006, but incidence increased over the next decade. In 2014, a total of 2811 cases were reported.¹ Chikungunya is an RNA arbovirus that is transmitted by Aedes aegypti and Aedes albopictus mosquitoes and is endemic to West Africa. Within the last 2 decades, there has been an increasing number of outbreaks in India, Asia, Europe, and the Americas, where the highest incidence is in South America, followed by Central America. In the United States, almost all reported cases of chikungunya infection have been in travelers returning from endemic areas.² The first 2 known cases of local transmission in the United States were reported in Florida in July 2014.³ Local transmission of chikungunya is significant in that it represents the possibility of a local reservoir for sustained transmission.

Disease presentation. Patients will initially complain of a high fever and severe distal polyarthralgias that usually are symmetric. The most common symptoms are polyarthralgias (87%–98% of patients), myalgias (46%–59%), and a maculopapular rash involving the palms and soles (40%–50%).⁴ Other associated symptoms include headaches, photophobia, and digestive symptoms. Respiratory symptoms are not present in chikungunya.⁵

The term chikungunya is derived from a Kimakonde (central Bantu) word meaning “that which bends up” because of the arthralgia caused by the disease. Fever usually lasts 3 to 7 days; polyarthralgia begins shortly after the onset of fever.⁴ Frank arthritis also may be present. Infection often exacerbates a previously damaged or diseased joint. Acute symptoms usually persist for 1 to 2 weeks, but arthralgias and arthritis can persist for months to years following resolution of the acute disease.⁶ In one study of 47 patients with acute chikungunya in Marseilles, France, the number of patients who were symptomatic declined from 88% to 86%, 48%, and 4% at 1, 3, 6, and 15 months, respectively.⁷

The differential diagnosis includes tropical infectious diseases (dengue, chikungunya, Zika, and leptospirosis) in patients who have recently traveled to the tropics and who complain of subacute polyarticular arthralgias or arthritis; locally acquired infections associated with arthralgia/arthritis such as Lyme disease and other tick-borne diseases and rickettsial infections; parvovirus B19 and other postinfectious arthritides; and rheumatologic conditions such as systemic lupus.

Chikungunya virus is increasingly common in American travelers returning from tropical and subtropical regions.

Clinical differentiation among dengue, chikungunya, and Zika may be difficult, although persistent frank arthritis is much more common in chikungunya than in dengue or Zika. Furthermore, conjunctivitis is present in Zika but is absent in chikungunya. Chikungunya also is more likely to cause high fever, severe arthralgia, arthritis, rash, and lymphopenia than Zika or dengue. Dengue is more likely to cause lymphopenia and hemorrhagic consequences than is chikungunya or Zika.⁸

Continue to: In our patient...

In our patient, dengue titers were not obtained because the duration of symptoms was thought to be more consistent with chikungunya, but testing for dengue also would have been appropriate. If present, fever typically is low-grade in Zika and is shorter in duration than in chikungunya (approximately 2–3 days vs 5–7 days).⁹ Coinfection with chikungunya and Zika sometimes occurs because the same mosquito species transmit both diseases.

The most common test for diagnosing acute chikungunya is ELISA serologic testing for IgM antibodies, which develop toward the end of the first week of infection; earlier in that first week, serum testing for viral RNA may be performed by polymerase chain reaction.

Treatment is largely supportive

Treatment of acute chikungunya is largely supportive and includes anti-inflammatory agents. To our knowledge, no antiviral agents have been shown to be effective. Postacute or chronic symptoms may require treatment with glucocorticoids or other immunomodulatory medications. A 2017 literature review of treatments for chikungunya-associated rheumatic disorders showed evidence that chloroquine was more effective than placebo for chronic pain relief. Also, adding a disease-modifying antirheumatic agent in combination with chloroquine was more effective for controlling pain and reducing disability than hydroxychloroquine monotherapy.¹⁰

Our patient was treated with ibuprofen only and experienced resolution of joint symptoms several months after the initial presentation. A repeat ANA test 12 months later was negative.

A 2009 review of the medical literature revealed a single case report of chikungunya associated with positive ANA.⁸ Although a positive ANA may be associated with acute viral infections, significantly elevated ANA levels typically are associated with autoimmunity. Resolution of the patient’s serum ANA 1 year later suggested that the positive ANA was not secondary to a pre-existing rheumatologic condition but rather a consequence of her body’s response to the chikungunya infection itself. Our case raises the hypothesis that, at least in some cases, chikungunya somehow stimulates a temporary autoimmune response, which may help explain why immunomodulatory medications can be effective treatment options.

Continue to: THE TAKEAWAY

Chikungunya is increasingly common in tropical and subtropical regions. Family physicians practicing in the United States should become familiar with the common patterns of presentation of viruses such as chikungunya, dengue, and Zika. Obtaining a travel history for patients presenting with arthritis improves the differential diagnosis and may even reveal the cause of the condition.

CORRESPONDENCE
Jeremy Golding, MD, 279 Lincoln Street, Worcester, MA 01605; [email protected]

THE CASE

A 78-year-old woman with a history of anxiety and hypertension presented to our family medicine residency practice in Massachusetts with subacute polyarticular arthralgias that had been present for 2 months. She complained of pain and swelling of both ankles and the right knee. She noted that her symptoms had started on a recent trip to the Dominican Republic, where she developed generalized joint pain and a fever that lasted 1 to 2 weeks and subsequently resolved with the lingering polyarthralgias. She denied any rash, constitutional symptoms, photosensitivity, headaches, photophobia, or history of tick bite. Physical examination revealed normal vital signs, notable warmth and swelling of the bilateral ankles that was worse on the right side, and swelling of the right knee with effusion—but no tenderness—to palpation.

THE DIAGNOSIS

The patient’s labwork revealed a white blood cell count of 5900/mcL (reference range, 4500–11,000/mcL), hemoglobin count of 12.5 g/dL (reference range, 14–17.5 g/dL), and a platelet count of 230×10³/mcL. Electrolytes and renal function were normal. She had an elevated erythrocyte sedimentation rate of 34 mm/h (reference range, 0–20 mm/h) and a positive antinuclear antibody (ANA) test, but no titer was reported. Anti-chikungunya IgG and IgM antibodies were positive on enzyme-linked immunosorbent assay (ELISA) serologic testing.

DISCUSSION

Chikungunya is an infectious disease that is relatively rare in the United States. Chikungunya was rarely identified in American travelers prior to 2006, but incidence increased over the next decade. In 2014, a total of 2811 cases were reported.¹ Chikungunya is an RNA arbovirus that is transmitted by Aedes aegypti and Aedes albopictus mosquitoes and is endemic to West Africa. Within the last 2 decades, there has been an increasing number of outbreaks in India, Asia, Europe, and the Americas, where the highest incidence is in South America, followed by Central America. In the United States, almost all reported cases of chikungunya infection have been in travelers returning from endemic areas.² The first 2 known cases of local transmission in the United States were reported in Florida in July 2014.³ Local transmission of chikungunya is significant in that it represents the possibility of a local reservoir for sustained transmission.

Disease presentation. Patients will initially complain of a high fever and severe distal polyarthralgias that usually are symmetric. The most common symptoms are polyarthralgias (87%–98% of patients), myalgias (46%–59%), and a maculopapular rash involving the palms and soles (40%–50%).⁴ Other associated symptoms include headaches, photophobia, and digestive symptoms. Respiratory symptoms are not present in chikungunya.⁵

The term chikungunya is derived from a Kimakonde (central Bantu) word meaning “that which bends up” because of the arthralgia caused by the disease. Fever usually lasts 3 to 7 days; polyarthralgia begins shortly after the onset of fever.⁴ Frank arthritis also may be present. Infection often exacerbates a previously damaged or diseased joint. Acute symptoms usually persist for 1 to 2 weeks, but arthralgias and arthritis can persist for months to years following resolution of the acute disease.⁶ In one study of 47 patients with acute chikungunya in Marseilles, France, the number of patients who were symptomatic declined from 88% to 86%, 48%, and 4% at 1, 3, 6, and 15 months, respectively.⁷

The differential diagnosis includes tropical infectious diseases (dengue, chikungunya, Zika, and leptospirosis) in patients who have recently traveled to the tropics and who complain of subacute polyarticular arthralgias or arthritis; locally acquired infections associated with arthralgia/arthritis such as Lyme disease and other tick-borne diseases and rickettsial infections; parvovirus B19 and other postinfectious arthritides; and rheumatologic conditions such as systemic lupus.

Chikungunya virus is increasingly common in American travelers returning from tropical and subtropical regions.

Clinical differentiation among dengue, chikungunya, and Zika may be difficult, although persistent frank arthritis is much more common in chikungunya than in dengue or Zika. Furthermore, conjunctivitis is present in Zika but is absent in chikungunya. Chikungunya also is more likely to cause high fever, severe arthralgia, arthritis, rash, and lymphopenia than Zika or dengue. Dengue is more likely to cause lymphopenia and hemorrhagic consequences than is chikungunya or Zika.⁸

Continue to: In our patient...

In our patient, dengue titers were not obtained because the duration of symptoms was thought to be more consistent with chikungunya, but testing for dengue also would have been appropriate. If present, fever typically is low-grade in Zika and is shorter in duration than in chikungunya (approximately 2–3 days vs 5–7 days).⁹ Coinfection with chikungunya and Zika sometimes occurs because the same mosquito species transmit both diseases.

The most common test for diagnosing acute chikungunya is ELISA serologic testing for IgM antibodies, which develop toward the end of the first week of infection; earlier in that first week, serum testing for viral RNA may be performed by polymerase chain reaction.

Treatment is largely supportive

Treatment of acute chikungunya is largely supportive and includes anti-inflammatory agents. To our knowledge, no antiviral agents have been shown to be effective. Postacute or chronic symptoms may require treatment with glucocorticoids or other immunomodulatory medications. A 2017 literature review of treatments for chikungunya-associated rheumatic disorders showed evidence that chloroquine was more effective than placebo for chronic pain relief. Also, adding a disease-modifying antirheumatic agent in combination with chloroquine was more effective for controlling pain and reducing disability than hydroxychloroquine monotherapy.¹⁰

Our patient was treated with ibuprofen only and experienced resolution of joint symptoms several months after the initial presentation. A repeat ANA test 12 months later was negative.

A 2009 review of the medical literature revealed a single case report of chikungunya associated with positive ANA.⁸ Although a positive ANA may be associated with acute viral infections, significantly elevated ANA levels typically are associated with autoimmunity. Resolution of the patient’s serum ANA 1 year later suggested that the positive ANA was not secondary to a pre-existing rheumatologic condition but rather a consequence of her body’s response to the chikungunya infection itself. Our case raises the hypothesis that, at least in some cases, chikungunya somehow stimulates a temporary autoimmune response, which may help explain why immunomodulatory medications can be effective treatment options.

Continue to: THE TAKEAWAY

Chikungunya is increasingly common in tropical and subtropical regions. Family physicians practicing in the United States should become familiar with the common patterns of presentation of viruses such as chikungunya, dengue, and Zika. Obtaining a travel history for patients presenting with arthritis improves the differential diagnosis and may even reveal the cause of the condition.

CORRESPONDENCE
Jeremy Golding, MD, 279 Lincoln Street, Worcester, MA 01605; [email protected]

THE CASE

A 78-year-old woman with a history of anxiety and hypertension presented to our family medicine residency practice in Massachusetts with subacute polyarticular arthralgias that had been present for 2 months. She complained of pain and swelling of both ankles and the right knee. She noted that her symptoms had started on a recent trip to the Dominican Republic, where she developed generalized joint pain and a fever that lasted 1 to 2 weeks and subsequently resolved with the lingering polyarthralgias. She denied any rash, constitutional symptoms, photosensitivity, headaches, photophobia, or history of tick bite. Physical examination revealed normal vital signs, notable warmth and swelling of the bilateral ankles that was worse on the right side, and swelling of the right knee with effusion—but no tenderness—to palpation.

THE DIAGNOSIS

The patient’s labwork revealed a white blood cell count of 5900/mcL (reference range, 4500–11,000/mcL), hemoglobin count of 12.5 g/dL (reference range, 14–17.5 g/dL), and a platelet count of 230×10³/mcL. Electrolytes and renal function were normal. She had an elevated erythrocyte sedimentation rate of 34 mm/h (reference range, 0–20 mm/h) and a positive antinuclear antibody (ANA) test, but no titer was reported. Anti-chikungunya IgG and IgM antibodies were positive on enzyme-linked immunosorbent assay (ELISA) serologic testing.

DISCUSSION

Chikungunya is an infectious disease that is relatively rare in the United States. Chikungunya was rarely identified in American travelers prior to 2006, but incidence increased over the next decade. In 2014, a total of 2811 cases were reported.¹ Chikungunya is an RNA arbovirus that is transmitted by Aedes aegypti and Aedes albopictus mosquitoes and is endemic to West Africa. Within the last 2 decades, there has been an increasing number of outbreaks in India, Asia, Europe, and the Americas, where the highest incidence is in South America, followed by Central America. In the United States, almost all reported cases of chikungunya infection have been in travelers returning from endemic areas.² The first 2 known cases of local transmission in the United States were reported in Florida in July 2014.³ Local transmission of chikungunya is significant in that it represents the possibility of a local reservoir for sustained transmission.

Disease presentation. Patients will initially complain of a high fever and severe distal polyarthralgias that usually are symmetric. The most common symptoms are polyarthralgias (87%–98% of patients), myalgias (46%–59%), and a maculopapular rash involving the palms and soles (40%–50%).⁴ Other associated symptoms include headaches, photophobia, and digestive symptoms. Respiratory symptoms are not present in chikungunya.⁵

The term chikungunya is derived from a Kimakonde (central Bantu) word meaning “that which bends up” because of the arthralgia caused by the disease. Fever usually lasts 3 to 7 days; polyarthralgia begins shortly after the onset of fever.⁴ Frank arthritis also may be present. Infection often exacerbates a previously damaged or diseased joint. Acute symptoms usually persist for 1 to 2 weeks, but arthralgias and arthritis can persist for months to years following resolution of the acute disease.⁶ In one study of 47 patients with acute chikungunya in Marseilles, France, the number of patients who were symptomatic declined from 88% to 86%, 48%, and 4% at 1, 3, 6, and 15 months, respectively.⁷

The differential diagnosis includes tropical infectious diseases (dengue, chikungunya, Zika, and leptospirosis) in patients who have recently traveled to the tropics and who complain of subacute polyarticular arthralgias or arthritis; locally acquired infections associated with arthralgia/arthritis such as Lyme disease and other tick-borne diseases and rickettsial infections; parvovirus B19 and other postinfectious arthritides; and rheumatologic conditions such as systemic lupus.

Chikungunya virus is increasingly common in American travelers returning from tropical and subtropical regions.

Clinical differentiation among dengue, chikungunya, and Zika may be difficult, although persistent frank arthritis is much more common in chikungunya than in dengue or Zika. Furthermore, conjunctivitis is present in Zika but is absent in chikungunya. Chikungunya also is more likely to cause high fever, severe arthralgia, arthritis, rash, and lymphopenia than Zika or dengue. Dengue is more likely to cause lymphopenia and hemorrhagic consequences than is chikungunya or Zika.⁸

Continue to: In our patient...

In our patient, dengue titers were not obtained because the duration of symptoms was thought to be more consistent with chikungunya, but testing for dengue also would have been appropriate. If present, fever typically is low-grade in Zika and is shorter in duration than in chikungunya (approximately 2–3 days vs 5–7 days).⁹ Coinfection with chikungunya and Zika sometimes occurs because the same mosquito species transmit both diseases.

The most common test for diagnosing acute chikungunya is ELISA serologic testing for IgM antibodies, which develop toward the end of the first week of infection; earlier in that first week, serum testing for viral RNA may be performed by polymerase chain reaction.

Treatment is largely supportive

Treatment of acute chikungunya is largely supportive and includes anti-inflammatory agents. To our knowledge, no antiviral agents have been shown to be effective. Postacute or chronic symptoms may require treatment with glucocorticoids or other immunomodulatory medications. A 2017 literature review of treatments for chikungunya-associated rheumatic disorders showed evidence that chloroquine was more effective than placebo for chronic pain relief. Also, adding a disease-modifying antirheumatic agent in combination with chloroquine was more effective for controlling pain and reducing disability than hydroxychloroquine monotherapy.¹⁰

Our patient was treated with ibuprofen only and experienced resolution of joint symptoms several months after the initial presentation. A repeat ANA test 12 months later was negative.

A 2009 review of the medical literature revealed a single case report of chikungunya associated with positive ANA.⁸ Although a positive ANA may be associated with acute viral infections, significantly elevated ANA levels typically are associated with autoimmunity. Resolution of the patient’s serum ANA 1 year later suggested that the positive ANA was not secondary to a pre-existing rheumatologic condition but rather a consequence of her body’s response to the chikungunya infection itself. Our case raises the hypothesis that, at least in some cases, chikungunya somehow stimulates a temporary autoimmune response, which may help explain why immunomodulatory medications can be effective treatment options.

Continue to: THE TAKEAWAY

Chikungunya is increasingly common in tropical and subtropical regions. Family physicians practicing in the United States should become familiar with the common patterns of presentation of viruses such as chikungunya, dengue, and Zika. Obtaining a travel history for patients presenting with arthritis improves the differential diagnosis and may even reveal the cause of the condition.

CORRESPONDENCE
Jeremy Golding, MD, 279 Lincoln Street, Worcester, MA 01605; [email protected]

SEATTLE – Female sex, young age, residing in a rural location, black race, and Medicaid insurance were all associated with reduced adherence to HIV pre-exposure prophylaxis in a study from the Centers for Disease Control and Prevention.

M. Alexander Otto/MDedge News

Daily pre-exposure prophylaxis (PrEP) with emtricitabine/tenofovir (Truvada) prevents infection, but not everyone sticks with it. The investigators wanted to find out who struggles the most with adherence to help focus future intervention efforts.

The team identified 7,250 commercially insured and 349 Medicaid PrEP users in IBM MarketScan databases during 2011-2016. They tracked them from their initial PrEP prescription until there was a gap of 30 days or more in their PrEP refills, at which point they met the study’s definition of nonpersistence.

Overall, “commercially insured nonpersistent PrEP users were young, female, and rural. Medicaid insured nonpersistent users were young, female, and black,” said lead investigator Ya-Lin Huang, PhD, a health scientist in the CDC Division of HIV/AIDS Prevention.

“It is concerning that some populations with low persistence were among those with the highest rates of HIV diagnosis, such as young, black men. Research is needed to understand reasons for discontinuing PrEP. Interventions tailored for priority populations are needed to improve PrEP persistence,” she said at the Conference on Retroviruses and Opportunistic Infections.

Her team found that commercially insured patients stuck with PrEP longer than did those on Medicaid, a median of 14.5 months, with 56% still filling their prescriptions after a year, versus a median Medicaid persistence of 7.6 months, with only a third of Medicaid patients still on PrEP after 12 months.

Men were more persistent with PrEP than were women in both groups, as were older people versus younger. The median length of adherence among commercially insured patients aged 45-54 years, for instance, was 20.5 months, versus 8.6 months among people aged 18-24 years. Older PrEP users persisted longer among Medicaid patients as well, a median of 10 versus 4 months.

Also in the Medicaid group, white patients stuck with PrEP longer than did black patients, a median of 8.5 months versus 4.1 months. There were no racial differences with commercial insurance.

The findings held even when the team used gaps of 60 and 90 days, instead of 30 days, to define nonpersistence.

The study says nothing about why people stopped PrEP, or why there were such stark differences between the groups.

Perhaps, in some cases, people quit risky behavior or entered new relationships. Maybe PrEP was too expensive for some, or transportation to the clinic was an issue. Side effects might have been a problem, or people could have lost their insurance coverage, or maybe didn’t want to deal with the hassle. It’s impossible to know from the data, Dr. Huang said.

She said her team wants to figure it out, so they can help people overcome barriers to treatment, which likely vary across subgroups.

The study also was limited to patients who were enrolled in coverage at least 6 months before and 6 months after their first PrEP prescription; the investigators want to exam the situation for people with less consistent coverage, and no coverage at all.

The work was funded by the Centers for Disease Control and Prevention. The investigators had no disclosures.

[email protected]

SOURCE: Huang YA et al. CROI 2019, Abstract 106.

SEATTLE – Female sex, young age, residing in a rural location, black race, and Medicaid insurance were all associated with reduced adherence to HIV pre-exposure prophylaxis in a study from the Centers for Disease Control and Prevention.

M. Alexander Otto/MDedge News

Daily pre-exposure prophylaxis (PrEP) with emtricitabine/tenofovir (Truvada) prevents infection, but not everyone sticks with it. The investigators wanted to find out who struggles the most with adherence to help focus future intervention efforts.

The team identified 7,250 commercially insured and 349 Medicaid PrEP users in IBM MarketScan databases during 2011-2016. They tracked them from their initial PrEP prescription until there was a gap of 30 days or more in their PrEP refills, at which point they met the study’s definition of nonpersistence.

Overall, “commercially insured nonpersistent PrEP users were young, female, and rural. Medicaid insured nonpersistent users were young, female, and black,” said lead investigator Ya-Lin Huang, PhD, a health scientist in the CDC Division of HIV/AIDS Prevention.

“It is concerning that some populations with low persistence were among those with the highest rates of HIV diagnosis, such as young, black men. Research is needed to understand reasons for discontinuing PrEP. Interventions tailored for priority populations are needed to improve PrEP persistence,” she said at the Conference on Retroviruses and Opportunistic Infections.

Her team found that commercially insured patients stuck with PrEP longer than did those on Medicaid, a median of 14.5 months, with 56% still filling their prescriptions after a year, versus a median Medicaid persistence of 7.6 months, with only a third of Medicaid patients still on PrEP after 12 months.

Men were more persistent with PrEP than were women in both groups, as were older people versus younger. The median length of adherence among commercially insured patients aged 45-54 years, for instance, was 20.5 months, versus 8.6 months among people aged 18-24 years. Older PrEP users persisted longer among Medicaid patients as well, a median of 10 versus 4 months.

Also in the Medicaid group, white patients stuck with PrEP longer than did black patients, a median of 8.5 months versus 4.1 months. There were no racial differences with commercial insurance.

The findings held even when the team used gaps of 60 and 90 days, instead of 30 days, to define nonpersistence.

The study says nothing about why people stopped PrEP, or why there were such stark differences between the groups.

Perhaps, in some cases, people quit risky behavior or entered new relationships. Maybe PrEP was too expensive for some, or transportation to the clinic was an issue. Side effects might have been a problem, or people could have lost their insurance coverage, or maybe didn’t want to deal with the hassle. It’s impossible to know from the data, Dr. Huang said.

She said her team wants to figure it out, so they can help people overcome barriers to treatment, which likely vary across subgroups.

The study also was limited to patients who were enrolled in coverage at least 6 months before and 6 months after their first PrEP prescription; the investigators want to exam the situation for people with less consistent coverage, and no coverage at all.

The work was funded by the Centers for Disease Control and Prevention. The investigators had no disclosures.

[email protected]

SOURCE: Huang YA et al. CROI 2019, Abstract 106.

SEATTLE – Female sex, young age, residing in a rural location, black race, and Medicaid insurance were all associated with reduced adherence to HIV pre-exposure prophylaxis in a study from the Centers for Disease Control and Prevention.

M. Alexander Otto/MDedge News

Daily pre-exposure prophylaxis (PrEP) with emtricitabine/tenofovir (Truvada) prevents infection, but not everyone sticks with it. The investigators wanted to find out who struggles the most with adherence to help focus future intervention efforts.

The team identified 7,250 commercially insured and 349 Medicaid PrEP users in IBM MarketScan databases during 2011-2016. They tracked them from their initial PrEP prescription until there was a gap of 30 days or more in their PrEP refills, at which point they met the study’s definition of nonpersistence.

Overall, “commercially insured nonpersistent PrEP users were young, female, and rural. Medicaid insured nonpersistent users were young, female, and black,” said lead investigator Ya-Lin Huang, PhD, a health scientist in the CDC Division of HIV/AIDS Prevention.

“It is concerning that some populations with low persistence were among those with the highest rates of HIV diagnosis, such as young, black men. Research is needed to understand reasons for discontinuing PrEP. Interventions tailored for priority populations are needed to improve PrEP persistence,” she said at the Conference on Retroviruses and Opportunistic Infections.

Her team found that commercially insured patients stuck with PrEP longer than did those on Medicaid, a median of 14.5 months, with 56% still filling their prescriptions after a year, versus a median Medicaid persistence of 7.6 months, with only a third of Medicaid patients still on PrEP after 12 months.

Men were more persistent with PrEP than were women in both groups, as were older people versus younger. The median length of adherence among commercially insured patients aged 45-54 years, for instance, was 20.5 months, versus 8.6 months among people aged 18-24 years. Older PrEP users persisted longer among Medicaid patients as well, a median of 10 versus 4 months.

Also in the Medicaid group, white patients stuck with PrEP longer than did black patients, a median of 8.5 months versus 4.1 months. There were no racial differences with commercial insurance.

The findings held even when the team used gaps of 60 and 90 days, instead of 30 days, to define nonpersistence.

The study says nothing about why people stopped PrEP, or why there were such stark differences between the groups.

Perhaps, in some cases, people quit risky behavior or entered new relationships. Maybe PrEP was too expensive for some, or transportation to the clinic was an issue. Side effects might have been a problem, or people could have lost their insurance coverage, or maybe didn’t want to deal with the hassle. It’s impossible to know from the data, Dr. Huang said.

She said her team wants to figure it out, so they can help people overcome barriers to treatment, which likely vary across subgroups.

The study also was limited to patients who were enrolled in coverage at least 6 months before and 6 months after their first PrEP prescription; the investigators want to exam the situation for people with less consistent coverage, and no coverage at all.

The work was funded by the Centers for Disease Control and Prevention. The investigators had no disclosures.

[email protected]

SOURCE: Huang YA et al. CROI 2019, Abstract 106.

SEATTLE – Kaiser Permanente Northern California has developed an EHR program that automatically flags patients at high risk for HIV.

M. Alexander Otto/MDedge News

The idea was to come up with a way to help clinicians focus their pre-exposure prophylaxis (PrEP) outreach on the people who need it most. PrEP prevents HIV, but often “it’s difficult for providers to identify patients who are at risk. Prediction models using EHR data can identify patients who are at high risk but not using PrEP,” said study lead Julia Marcus, PhD, an assistant professor in the department of population medicine at Harvard Medical School, Boston.

She proved that assertion in a presentation at the Conference on Retroviruses & Opportunistic Infections.

The Kaiser program uses 44 variables routinely collected in EHRs from five categories: demographics, social history, lab data, medication use, and diagnoses. Specific variables include living in a zip code with high HIV incidence; men who have sex with men (MSM); black race; urine tests positive for cocaine or methadone; use of erectile dysfunction medications; and diagnoses of depression, anal warts, and other conditions.

The development cohort included 3,143,963 Kaiser members from 2007 to 2014 with 2 or more years of enrollment; at least one outpatient visit; no prior PrEP use; and no HIV diagnosis.

There were 701 incident HIV cases; the model did a good job at predicting them, with a C-statistic of 0.86 (95% confidence interval, 0.85-0.87). A score of 1.0 would be perfect prediction, and 0.5 no predictive value. Previous efforts at HIV prediction – relying generally on just MSM status and STD history – have C-statistics of around 0.6; prediction models commonly used for cardiovascular and other diseases often have C-statistics of around 0.7, Dr. Marcus explained.

The model was validated in 606,701 Kaiser members during 2015-2017. The validation cohort was slightly younger than the development cohort, with a mean age of 37 versus 45 years, and slightly more diverse, with fewer white patients, 44% versus 52%. Both cohorts had slightly more women than men.

There were 83 new HIV diagnoses in the validation cohort. The C-statistic for HIV prediction was 0.84 (95% CI, 0.8-0.89). The model predicted 32 of 69 (46%) incident HIV cases among men tagged as high risk – at least a 0.2% chance of contracting HIV within 3 years – or very high risk, a 1% chance or higher, which is more than 50 times the risk among the general population. Relying on just MSM and STD history predicted 32% of cases.

Overall, “our model identified nearly half of new HIV cases among males by flagging only 2% of the general population. The results suggest our model would perform well if implemented today. You could replicate our approach in any health system with an EHR. Our specific variables may not translate to every setting, but any health care system can develop this model based on the EHR data they do have,” Dr. Marcus said.

“You could embed this in any EHR system and have it update in real time to flag providers to do a sexual history and talk with patients about PrEP,” she said.

The next step is a pilot project at Kaiser Permanente San Francisco to evaluate the impact on PrEP prescribing and HIV incidence. The model failed to predict 14 incident HIV cases among women in the validation cohort, a problem that also needs to be addressed.

The work was funded by the National Institutes of Health and Kaiser Permanente. Dr. Marcus didn’t have any relevant disclosures.

[email protected]

SOURCE: Marcus JL et al. CROI 2019, Abstract 105.

SEATTLE – Kaiser Permanente Northern California has developed an EHR program that automatically flags patients at high risk for HIV.

M. Alexander Otto/MDedge News

The idea was to come up with a way to help clinicians focus their pre-exposure prophylaxis (PrEP) outreach on the people who need it most. PrEP prevents HIV, but often “it’s difficult for providers to identify patients who are at risk. Prediction models using EHR data can identify patients who are at high risk but not using PrEP,” said study lead Julia Marcus, PhD, an assistant professor in the department of population medicine at Harvard Medical School, Boston.

She proved that assertion in a presentation at the Conference on Retroviruses & Opportunistic Infections.

The Kaiser program uses 44 variables routinely collected in EHRs from five categories: demographics, social history, lab data, medication use, and diagnoses. Specific variables include living in a zip code with high HIV incidence; men who have sex with men (MSM); black race; urine tests positive for cocaine or methadone; use of erectile dysfunction medications; and diagnoses of depression, anal warts, and other conditions.

The development cohort included 3,143,963 Kaiser members from 2007 to 2014 with 2 or more years of enrollment; at least one outpatient visit; no prior PrEP use; and no HIV diagnosis.

There were 701 incident HIV cases; the model did a good job at predicting them, with a C-statistic of 0.86 (95% confidence interval, 0.85-0.87). A score of 1.0 would be perfect prediction, and 0.5 no predictive value. Previous efforts at HIV prediction – relying generally on just MSM status and STD history – have C-statistics of around 0.6; prediction models commonly used for cardiovascular and other diseases often have C-statistics of around 0.7, Dr. Marcus explained.

The model was validated in 606,701 Kaiser members during 2015-2017. The validation cohort was slightly younger than the development cohort, with a mean age of 37 versus 45 years, and slightly more diverse, with fewer white patients, 44% versus 52%. Both cohorts had slightly more women than men.

There were 83 new HIV diagnoses in the validation cohort. The C-statistic for HIV prediction was 0.84 (95% CI, 0.8-0.89). The model predicted 32 of 69 (46%) incident HIV cases among men tagged as high risk – at least a 0.2% chance of contracting HIV within 3 years – or very high risk, a 1% chance or higher, which is more than 50 times the risk among the general population. Relying on just MSM and STD history predicted 32% of cases.

Overall, “our model identified nearly half of new HIV cases among males by flagging only 2% of the general population. The results suggest our model would perform well if implemented today. You could replicate our approach in any health system with an EHR. Our specific variables may not translate to every setting, but any health care system can develop this model based on the EHR data they do have,” Dr. Marcus said.

“You could embed this in any EHR system and have it update in real time to flag providers to do a sexual history and talk with patients about PrEP,” she said.

The next step is a pilot project at Kaiser Permanente San Francisco to evaluate the impact on PrEP prescribing and HIV incidence. The model failed to predict 14 incident HIV cases among women in the validation cohort, a problem that also needs to be addressed.

The work was funded by the National Institutes of Health and Kaiser Permanente. Dr. Marcus didn’t have any relevant disclosures.

[email protected]

SOURCE: Marcus JL et al. CROI 2019, Abstract 105.

SEATTLE – Kaiser Permanente Northern California has developed an EHR program that automatically flags patients at high risk for HIV.

M. Alexander Otto/MDedge News

The idea was to come up with a way to help clinicians focus their pre-exposure prophylaxis (PrEP) outreach on the people who need it most. PrEP prevents HIV, but often “it’s difficult for providers to identify patients who are at risk. Prediction models using EHR data can identify patients who are at high risk but not using PrEP,” said study lead Julia Marcus, PhD, an assistant professor in the department of population medicine at Harvard Medical School, Boston.

She proved that assertion in a presentation at the Conference on Retroviruses & Opportunistic Infections.

The Kaiser program uses 44 variables routinely collected in EHRs from five categories: demographics, social history, lab data, medication use, and diagnoses. Specific variables include living in a zip code with high HIV incidence; men who have sex with men (MSM); black race; urine tests positive for cocaine or methadone; use of erectile dysfunction medications; and diagnoses of depression, anal warts, and other conditions.

The development cohort included 3,143,963 Kaiser members from 2007 to 2014 with 2 or more years of enrollment; at least one outpatient visit; no prior PrEP use; and no HIV diagnosis.

There were 701 incident HIV cases; the model did a good job at predicting them, with a C-statistic of 0.86 (95% confidence interval, 0.85-0.87). A score of 1.0 would be perfect prediction, and 0.5 no predictive value. Previous efforts at HIV prediction – relying generally on just MSM status and STD history – have C-statistics of around 0.6; prediction models commonly used for cardiovascular and other diseases often have C-statistics of around 0.7, Dr. Marcus explained.

The model was validated in 606,701 Kaiser members during 2015-2017. The validation cohort was slightly younger than the development cohort, with a mean age of 37 versus 45 years, and slightly more diverse, with fewer white patients, 44% versus 52%. Both cohorts had slightly more women than men.

There were 83 new HIV diagnoses in the validation cohort. The C-statistic for HIV prediction was 0.84 (95% CI, 0.8-0.89). The model predicted 32 of 69 (46%) incident HIV cases among men tagged as high risk – at least a 0.2% chance of contracting HIV within 3 years – or very high risk, a 1% chance or higher, which is more than 50 times the risk among the general population. Relying on just MSM and STD history predicted 32% of cases.

Overall, “our model identified nearly half of new HIV cases among males by flagging only 2% of the general population. The results suggest our model would perform well if implemented today. You could replicate our approach in any health system with an EHR. Our specific variables may not translate to every setting, but any health care system can develop this model based on the EHR data they do have,” Dr. Marcus said.

“You could embed this in any EHR system and have it update in real time to flag providers to do a sexual history and talk with patients about PrEP,” she said.

The next step is a pilot project at Kaiser Permanente San Francisco to evaluate the impact on PrEP prescribing and HIV incidence. The model failed to predict 14 incident HIV cases among women in the validation cohort, a problem that also needs to be addressed.

The work was funded by the National Institutes of Health and Kaiser Permanente. Dr. Marcus didn’t have any relevant disclosures.

[email protected]

SOURCE: Marcus JL et al. CROI 2019, Abstract 105.

The National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, is launching the first in-human trial of a universal influenza vaccine candidate.

Copyright National Institutes of Health

The experimental vaccine, H1ssF_3928, is derived from the stem of an H1N1 virus and has a surface made from hemagglutinin and ferritin. By including only the stem of the virus, which changes less than the head, the vaccine should require fewer updates. A similar vaccine made from the same materials was shown to be safe and well tolerated in humans.

The clinical trial (NCT03814720) will be conducted at the NIH Clinical Center in Bethesda, Md., and will gradually enroll at least 53 healthy adults aged 18-70 years. The first 5 participants will receive one 20-mcg intramuscular injection of the vaccine; the other 48 participants will receive two 60-mcg vaccinations 16 weeks apart. Patients will return for 9-11 follow-ups over a 12- to 15-month period, and will provide blood samples for analysis of anti-influenza antibodies.

copyright itsmejust/Thinkstock

“Seasonal influenza is a perpetual public health challenge, and we continually face the possibility of an influenza pandemic resulting from the emergence and spread of novel influenza viruses. This phase 1 clinical trial is a step forward in our efforts to develop a durable and broadly protective universal influenza vaccine,” Anthony S. Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, said in the press release.

Find the full press release on the NIH website.

[email protected]

The National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, is launching the first in-human trial of a universal influenza vaccine candidate.

Copyright National Institutes of Health

The experimental vaccine, H1ssF_3928, is derived from the stem of an H1N1 virus and has a surface made from hemagglutinin and ferritin. By including only the stem of the virus, which changes less than the head, the vaccine should require fewer updates. A similar vaccine made from the same materials was shown to be safe and well tolerated in humans.

The clinical trial (NCT03814720) will be conducted at the NIH Clinical Center in Bethesda, Md., and will gradually enroll at least 53 healthy adults aged 18-70 years. The first 5 participants will receive one 20-mcg intramuscular injection of the vaccine; the other 48 participants will receive two 60-mcg vaccinations 16 weeks apart. Patients will return for 9-11 follow-ups over a 12- to 15-month period, and will provide blood samples for analysis of anti-influenza antibodies.

copyright itsmejust/Thinkstock

“Seasonal influenza is a perpetual public health challenge, and we continually face the possibility of an influenza pandemic resulting from the emergence and spread of novel influenza viruses. This phase 1 clinical trial is a step forward in our efforts to develop a durable and broadly protective universal influenza vaccine,” Anthony S. Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, said in the press release.

Find the full press release on the NIH website.

[email protected]

The National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, is launching the first in-human trial of a universal influenza vaccine candidate.

Copyright National Institutes of Health

The experimental vaccine, H1ssF_3928, is derived from the stem of an H1N1 virus and has a surface made from hemagglutinin and ferritin. By including only the stem of the virus, which changes less than the head, the vaccine should require fewer updates. A similar vaccine made from the same materials was shown to be safe and well tolerated in humans.

The clinical trial (NCT03814720) will be conducted at the NIH Clinical Center in Bethesda, Md., and will gradually enroll at least 53 healthy adults aged 18-70 years. The first 5 participants will receive one 20-mcg intramuscular injection of the vaccine; the other 48 participants will receive two 60-mcg vaccinations 16 weeks apart. Patients will return for 9-11 follow-ups over a 12- to 15-month period, and will provide blood samples for analysis of anti-influenza antibodies.

copyright itsmejust/Thinkstock

“Seasonal influenza is a perpetual public health challenge, and we continually face the possibility of an influenza pandemic resulting from the emergence and spread of novel influenza viruses. This phase 1 clinical trial is a step forward in our efforts to develop a durable and broadly protective universal influenza vaccine,” Anthony S. Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, said in the press release.

Find the full press release on the NIH website.

[email protected]

SEATTLE – Advances in genetic sequencing are boosting efforts to identify new clusters of HIV infections and guiding public health interventions to address them. The method relies on resistance testing at diagnosis and virologic failure and allows public health researchers to determine the genetic relatedness of viruses responsible for new infections. If the viruses are genetically, geographically, and temporally associated, it indicates a previously unknown transmission cluster.

copyright Kativ/iStockphoto

“The presence of a cluster indicates gaps in our preventative services, which we must address to improve service delivery and stop transmission,” Alexandra M. Oster, MD, Division of HIV/AIDS Prevention, Surveillance, and Epidemiology at the Centers for Disease Control and Prevention, Atlanta, said during a talk at the Conference on Retroviruses and Opportunistic Infections.

She noted that HIV brings special challenges to outbreak detection. The median delay between infection and diagnosis is 3 years. Individuals are highly mobile, and signals of new outbreaks can be quickly drowned out in high-burden areas. But these challenges aren’t unique. Tuberculosis has a similarly lengthy latency period, yet more than 75% of new TB outbreaks are now identified through the use of genetic data. Sequencing also is used to track food-borne illness. The CDC’s PulseNet is a network of laboratories that examines DNA sequences from bacterial infections in search of previously unrecognized outbreaks.

In the HIV setting, molecular surveillance has great potential in identifying and intervening in evolving networks of HIV transmission, but also carries ethical and other challenges.

Nevertheless, “I hope to make the case that cluster detection and response [using molecular surveillance] can help bring the nation closer to ending the HIV epidemic,” said Dr. Oster.

Molecular surveillance obtains most of its data from drug resistance testing, both at entry to care and after virologic failure, which then gets passed to the U.S. National HIV Surveillance System. The data are then stripped of patient identifying information and submitted to the CDC.

With data from multiple individuals in hand, researchers create a phylogenetic tree, in which closely-related viruses appear as close neighbors on a branch. “By tracing back along the tree, you can see the inferred ancestor of [individual strains], and also the inferred ancestor of all strains on the tree,” said Dr. Oster. Together with geographical data, that information allows researchers to identify clusters of patients connected in a transmission network, and that information can be passed along to federal, state, and local agencies to prevent infections and improve care.

From 1997 through 2012, the CDC’s molecular surveillance program focused on drug resistance patterns, but in 2013 the agency decided to expand to include transmission clusters. It now uses a tool called HIV Trace, which helps public health workers with no background in bioinformatics to visualize the DNA sequences and potential clusters, though Dr. Oster cautioned against overinterpretation of the results. “The links shown can easily be misinterpreted as actual social connections,” she said.

As proof of the approach’s potential, an analysis of the clusters identified showed their potential for HIV spread. On average in the United States, four new HIV infections occur per 100 people living with HIV. In the first 13 clusters that CDC identified, the number of infections was 33 per 100 person-years. The first 60 clusters had an average of 44 transmissions per 100 person-years. “None of these clusters had been found by [standard] epidemiologic methods, demonstrating that rapid transmission can be hard to detect without molecular data,” said Dr. Oster.

In 2018, all health departments began collecting sequencing data, and almost 40% of newly diagnosed patients have had sequencing data reported, more than 340,000 patients in total. Researchers have identified 145 priority clusters.

But use of molecular data is not the only method available. The CDC monitors increases in diagnoses in specific areas and conducts time-space analyses. These more traditional methods are particularly useful in areas with small populations or low HIV burden.

With a cluster identified, public health officials can attempt to identify all of the members of the network and help them to access services, such as testing, preexposure prophylaxis (PrEP), syringe service programs, and linkage to care.

In San Antonio, Tex., an analysis identified a cluster of 24 gay and bisexual men, and further analysis revealed an extended network of 87 sexual or needle-sharing partners. Researchers also identified missed opportunities for diagnosis of acute infection as well as low access to PrEP, so the health department sent out an alert clarifying diagnosis testing guidelines, highlighting the concern over acute infection, and containing PrEP educational material.

Analysis of another network in Michigan found that all identified individuals were virally suppressed, even though the network continued to grow. That suggested that there were unidentified individuals who were contributing to transmission, which prompted efforts by providers to encourage testing, linkage to care, and prevention.

All of these developments are good news for efforts to eradicate HIV, but they come with pitfalls. Local communities have expressed concerned that molecular data could be used to identify direction of transmission and for prosecution, since there are HIV laws that criminalize lack of disclosure and potential exposure to the virus, even when transmission doesn’t occur. “These laws are not aligned with current science and have not been found to help curb HIV,” said Dr. Oster.

She noted that current molecular methods are incapable of identifying direction of transmission. Still, the CDC is reemphasizing efforts to protect public health data from nonpublic health use. “CDC and health departments implement unprecedented policies and procedures to ensure confidentiality and security of the data,” Dr. Oster said.

She reported having no relevant disclosures.

SEATTLE – Advances in genetic sequencing are boosting efforts to identify new clusters of HIV infections and guiding public health interventions to address them. The method relies on resistance testing at diagnosis and virologic failure and allows public health researchers to determine the genetic relatedness of viruses responsible for new infections. If the viruses are genetically, geographically, and temporally associated, it indicates a previously unknown transmission cluster.

copyright Kativ/iStockphoto

“The presence of a cluster indicates gaps in our preventative services, which we must address to improve service delivery and stop transmission,” Alexandra M. Oster, MD, Division of HIV/AIDS Prevention, Surveillance, and Epidemiology at the Centers for Disease Control and Prevention, Atlanta, said during a talk at the Conference on Retroviruses and Opportunistic Infections.

She noted that HIV brings special challenges to outbreak detection. The median delay between infection and diagnosis is 3 years. Individuals are highly mobile, and signals of new outbreaks can be quickly drowned out in high-burden areas. But these challenges aren’t unique. Tuberculosis has a similarly lengthy latency period, yet more than 75% of new TB outbreaks are now identified through the use of genetic data. Sequencing also is used to track food-borne illness. The CDC’s PulseNet is a network of laboratories that examines DNA sequences from bacterial infections in search of previously unrecognized outbreaks.

In the HIV setting, molecular surveillance has great potential in identifying and intervening in evolving networks of HIV transmission, but also carries ethical and other challenges.

Nevertheless, “I hope to make the case that cluster detection and response [using molecular surveillance] can help bring the nation closer to ending the HIV epidemic,” said Dr. Oster.

Molecular surveillance obtains most of its data from drug resistance testing, both at entry to care and after virologic failure, which then gets passed to the U.S. National HIV Surveillance System. The data are then stripped of patient identifying information and submitted to the CDC.

With data from multiple individuals in hand, researchers create a phylogenetic tree, in which closely-related viruses appear as close neighbors on a branch. “By tracing back along the tree, you can see the inferred ancestor of [individual strains], and also the inferred ancestor of all strains on the tree,” said Dr. Oster. Together with geographical data, that information allows researchers to identify clusters of patients connected in a transmission network, and that information can be passed along to federal, state, and local agencies to prevent infections and improve care.

From 1997 through 2012, the CDC’s molecular surveillance program focused on drug resistance patterns, but in 2013 the agency decided to expand to include transmission clusters. It now uses a tool called HIV Trace, which helps public health workers with no background in bioinformatics to visualize the DNA sequences and potential clusters, though Dr. Oster cautioned against overinterpretation of the results. “The links shown can easily be misinterpreted as actual social connections,” she said.

As proof of the approach’s potential, an analysis of the clusters identified showed their potential for HIV spread. On average in the United States, four new HIV infections occur per 100 people living with HIV. In the first 13 clusters that CDC identified, the number of infections was 33 per 100 person-years. The first 60 clusters had an average of 44 transmissions per 100 person-years. “None of these clusters had been found by [standard] epidemiologic methods, demonstrating that rapid transmission can be hard to detect without molecular data,” said Dr. Oster.

In 2018, all health departments began collecting sequencing data, and almost 40% of newly diagnosed patients have had sequencing data reported, more than 340,000 patients in total. Researchers have identified 145 priority clusters.

But use of molecular data is not the only method available. The CDC monitors increases in diagnoses in specific areas and conducts time-space analyses. These more traditional methods are particularly useful in areas with small populations or low HIV burden.

With a cluster identified, public health officials can attempt to identify all of the members of the network and help them to access services, such as testing, preexposure prophylaxis (PrEP), syringe service programs, and linkage to care.

In San Antonio, Tex., an analysis identified a cluster of 24 gay and bisexual men, and further analysis revealed an extended network of 87 sexual or needle-sharing partners. Researchers also identified missed opportunities for diagnosis of acute infection as well as low access to PrEP, so the health department sent out an alert clarifying diagnosis testing guidelines, highlighting the concern over acute infection, and containing PrEP educational material.

Analysis of another network in Michigan found that all identified individuals were virally suppressed, even though the network continued to grow. That suggested that there were unidentified individuals who were contributing to transmission, which prompted efforts by providers to encourage testing, linkage to care, and prevention.

All of these developments are good news for efforts to eradicate HIV, but they come with pitfalls. Local communities have expressed concerned that molecular data could be used to identify direction of transmission and for prosecution, since there are HIV laws that criminalize lack of disclosure and potential exposure to the virus, even when transmission doesn’t occur. “These laws are not aligned with current science and have not been found to help curb HIV,” said Dr. Oster.

She noted that current molecular methods are incapable of identifying direction of transmission. Still, the CDC is reemphasizing efforts to protect public health data from nonpublic health use. “CDC and health departments implement unprecedented policies and procedures to ensure confidentiality and security of the data,” Dr. Oster said.

She reported having no relevant disclosures.

SEATTLE – Advances in genetic sequencing are boosting efforts to identify new clusters of HIV infections and guiding public health interventions to address them. The method relies on resistance testing at diagnosis and virologic failure and allows public health researchers to determine the genetic relatedness of viruses responsible for new infections. If the viruses are genetically, geographically, and temporally associated, it indicates a previously unknown transmission cluster.

copyright Kativ/iStockphoto

“The presence of a cluster indicates gaps in our preventative services, which we must address to improve service delivery and stop transmission,” Alexandra M. Oster, MD, Division of HIV/AIDS Prevention, Surveillance, and Epidemiology at the Centers for Disease Control and Prevention, Atlanta, said during a talk at the Conference on Retroviruses and Opportunistic Infections.

She noted that HIV brings special challenges to outbreak detection. The median delay between infection and diagnosis is 3 years. Individuals are highly mobile, and signals of new outbreaks can be quickly drowned out in high-burden areas. But these challenges aren’t unique. Tuberculosis has a similarly lengthy latency period, yet more than 75% of new TB outbreaks are now identified through the use of genetic data. Sequencing also is used to track food-borne illness. The CDC’s PulseNet is a network of laboratories that examines DNA sequences from bacterial infections in search of previously unrecognized outbreaks.

In the HIV setting, molecular surveillance has great potential in identifying and intervening in evolving networks of HIV transmission, but also carries ethical and other challenges.

Nevertheless, “I hope to make the case that cluster detection and response [using molecular surveillance] can help bring the nation closer to ending the HIV epidemic,” said Dr. Oster.

Molecular surveillance obtains most of its data from drug resistance testing, both at entry to care and after virologic failure, which then gets passed to the U.S. National HIV Surveillance System. The data are then stripped of patient identifying information and submitted to the CDC.

With data from multiple individuals in hand, researchers create a phylogenetic tree, in which closely-related viruses appear as close neighbors on a branch. “By tracing back along the tree, you can see the inferred ancestor of [individual strains], and also the inferred ancestor of all strains on the tree,” said Dr. Oster. Together with geographical data, that information allows researchers to identify clusters of patients connected in a transmission network, and that information can be passed along to federal, state, and local agencies to prevent infections and improve care.

From 1997 through 2012, the CDC’s molecular surveillance program focused on drug resistance patterns, but in 2013 the agency decided to expand to include transmission clusters. It now uses a tool called HIV Trace, which helps public health workers with no background in bioinformatics to visualize the DNA sequences and potential clusters, though Dr. Oster cautioned against overinterpretation of the results. “The links shown can easily be misinterpreted as actual social connections,” she said.

As proof of the approach’s potential, an analysis of the clusters identified showed their potential for HIV spread. On average in the United States, four new HIV infections occur per 100 people living with HIV. In the first 13 clusters that CDC identified, the number of infections was 33 per 100 person-years. The first 60 clusters had an average of 44 transmissions per 100 person-years. “None of these clusters had been found by [standard] epidemiologic methods, demonstrating that rapid transmission can be hard to detect without molecular data,” said Dr. Oster.

In 2018, all health departments began collecting sequencing data, and almost 40% of newly diagnosed patients have had sequencing data reported, more than 340,000 patients in total. Researchers have identified 145 priority clusters.

But use of molecular data is not the only method available. The CDC monitors increases in diagnoses in specific areas and conducts time-space analyses. These more traditional methods are particularly useful in areas with small populations or low HIV burden.

With a cluster identified, public health officials can attempt to identify all of the members of the network and help them to access services, such as testing, preexposure prophylaxis (PrEP), syringe service programs, and linkage to care.

In San Antonio, Tex., an analysis identified a cluster of 24 gay and bisexual men, and further analysis revealed an extended network of 87 sexual or needle-sharing partners. Researchers also identified missed opportunities for diagnosis of acute infection as well as low access to PrEP, so the health department sent out an alert clarifying diagnosis testing guidelines, highlighting the concern over acute infection, and containing PrEP educational material.

Analysis of another network in Michigan found that all identified individuals were virally suppressed, even though the network continued to grow. That suggested that there were unidentified individuals who were contributing to transmission, which prompted efforts by providers to encourage testing, linkage to care, and prevention.

All of these developments are good news for efforts to eradicate HIV, but they come with pitfalls. Local communities have expressed concerned that molecular data could be used to identify direction of transmission and for prosecution, since there are HIV laws that criminalize lack of disclosure and potential exposure to the virus, even when transmission doesn’t occur. “These laws are not aligned with current science and have not been found to help curb HIV,” said Dr. Oster.

She noted that current molecular methods are incapable of identifying direction of transmission. Still, the CDC is reemphasizing efforts to protect public health data from nonpublic health use. “CDC and health departments implement unprecedented policies and procedures to ensure confidentiality and security of the data,” Dr. Oster said.

She reported having no relevant disclosures.

SEATTLE – Sexually-transmitted infections (STIs) such as gonorrhea, chlamydia, and syphilis are on the rise among HIV-infected individuals, and emerging antimicrobial resistance in these organisms is presenting serious challenges to physicians. The issue may be traceable to the introduction of preexposure prophylaxis (PrEP) in 2011, which previous studies have shown to be associated with less condom use.

CDC

In the United States, a 2017 report by the Centers for Disease Control and Prevention showed rising incidences of chlamydia (+5% from 2015 to 2017), gonorrhea (+19%), and syphilis (+18%). “We have an incidence among men who have sex with men [MSM] that is above the pre-AIDS era estimates, and we have evidence of spread into heterosexual networks, and a very scary collision with the methamphetamine and heroine using networks,” said Jeanne Marrazzo, MD, professor of infectious diseases at the University of Alabama at Birmingham.

But the numbers alone don’t tell the whole story. “It’s not just the burden of these infections. What’s characterizing these trends is that we have continuing evolution of microbial resistance, which is really a crisis,” Dr. Marrazzo added during a plenary she delivered at the Conference on Retroviruses & Opportunistic Infections.

These infections also remain intricately linked with HIV. An analysis of syphilis cases found that 88% occurred in men. Of those, 80% were MSM. Of the cases in MSM, 46% were coinfected with HIV. “Those are incredible rates,” said Dr. Marrazzo. Among women, the trends are even more alarming. There has been a greater than 150% increase in primary/secondary and congenital syphilis between 2013 and 2017.

Resistance to ceftriaxone and azithromycin remains on the rise in gonorrhea, with 24% of countries reporting at least a 5% incidence of strains that are less susceptible or resistant to ceftriaxone, and 81% of countries reporting similar trends with azithromycin.

In the absence of new drugs to overcome that resistance, or vaccines that can prevent gonorrhea and other infections, what are clinicians to do?

One option may be postexposure doxycycline. One trial in MSM showed that a 200-mg dose taken 24-72 hours after sex was associated with about a 70% increase in both time to first chlamydia and time to first syphilis infection, though no effect was seen on gonorrhea infections. “We shouldn’t be surprised. We know that gonorrhea is classically resistant to tetracyclines, and the MSM population has the highest prevalence of antimicrobial resistance in gonorrhea,” said Dr. Marrazzo.

There are pros and cons to this strategy, of course. On the one hand, doxycycline works for chlamydia and syphilis, it’s safe, and it’s easy to administer. “We’re up a tree when it comes to syphilis, so why not?” opined Dr. Marrazzo. In fact, some MSM have read the literature and are already using it prophylactically. But there are downsides, including adverse effects such as esophagitis/ulceration and photosensitivity, and it is contraindicated in pregnant women. And then there’s the potential for evolving greater resistance. “The horse is out of the barn with respect to gonorrhea, but I think it’s worth thinking about resistance to other pathogens, where we still rely on doxycycline [to treat] in rare cases,” said Dr. Marrazzo.

Finally, Dr. Marrazzo discussed the role of STI treatment in the effort to eradicate HIV. Should the Getting to 0 strategies include aggressive prevention and treatment of STIs? Despite the potentiating role of some STIs in the spread HIV, some urban areas are approaching zero new infections even as other STIs remain a problem. It could be that undetectable = untransmittable, regardless of the presence an STI. Some view targeting STIs as a regressive practice in a setting where the U=U mantra has opened up an era of sexual freedom living with or at risk of HIV.

On the other hand, there are also good arguments to target STIs while trying to eliminate HIV. Results from high-resource locales such as San Francisco and New York City are unlikely to be replicated in places like Sub-Saharan Africa. The public health burden of STIs is extensive, and antibiotic resistance and antibiotic shortages can make treatment difficult. The situation is also different for women, who may experience impacts on fertility or pregnancies, and do not have the same freedom as men in many countries. “Stigma is highly operative and I would wager that sexual pleasure and freedom remain a very elusive goal for women across the globe,” said Dr. Marrazzo.

Dr. Marrazzo has a research grant/grant pending from Cepheid, and is on the advisory panels of BioFire and Gilead.

SEATTLE – Sexually-transmitted infections (STIs) such as gonorrhea, chlamydia, and syphilis are on the rise among HIV-infected individuals, and emerging antimicrobial resistance in these organisms is presenting serious challenges to physicians. The issue may be traceable to the introduction of preexposure prophylaxis (PrEP) in 2011, which previous studies have shown to be associated with less condom use.

CDC

In the United States, a 2017 report by the Centers for Disease Control and Prevention showed rising incidences of chlamydia (+5% from 2015 to 2017), gonorrhea (+19%), and syphilis (+18%). “We have an incidence among men who have sex with men [MSM] that is above the pre-AIDS era estimates, and we have evidence of spread into heterosexual networks, and a very scary collision with the methamphetamine and heroine using networks,” said Jeanne Marrazzo, MD, professor of infectious diseases at the University of Alabama at Birmingham.

But the numbers alone don’t tell the whole story. “It’s not just the burden of these infections. What’s characterizing these trends is that we have continuing evolution of microbial resistance, which is really a crisis,” Dr. Marrazzo added during a plenary she delivered at the Conference on Retroviruses & Opportunistic Infections.

These infections also remain intricately linked with HIV. An analysis of syphilis cases found that 88% occurred in men. Of those, 80% were MSM. Of the cases in MSM, 46% were coinfected with HIV. “Those are incredible rates,” said Dr. Marrazzo. Among women, the trends are even more alarming. There has been a greater than 150% increase in primary/secondary and congenital syphilis between 2013 and 2017.

Resistance to ceftriaxone and azithromycin remains on the rise in gonorrhea, with 24% of countries reporting at least a 5% incidence of strains that are less susceptible or resistant to ceftriaxone, and 81% of countries reporting similar trends with azithromycin.

In the absence of new drugs to overcome that resistance, or vaccines that can prevent gonorrhea and other infections, what are clinicians to do?

One option may be postexposure doxycycline. One trial in MSM showed that a 200-mg dose taken 24-72 hours after sex was associated with about a 70% increase in both time to first chlamydia and time to first syphilis infection, though no effect was seen on gonorrhea infections. “We shouldn’t be surprised. We know that gonorrhea is classically resistant to tetracyclines, and the MSM population has the highest prevalence of antimicrobial resistance in gonorrhea,” said Dr. Marrazzo.

There are pros and cons to this strategy, of course. On the one hand, doxycycline works for chlamydia and syphilis, it’s safe, and it’s easy to administer. “We’re up a tree when it comes to syphilis, so why not?” opined Dr. Marrazzo. In fact, some MSM have read the literature and are already using it prophylactically. But there are downsides, including adverse effects such as esophagitis/ulceration and photosensitivity, and it is contraindicated in pregnant women. And then there’s the potential for evolving greater resistance. “The horse is out of the barn with respect to gonorrhea, but I think it’s worth thinking about resistance to other pathogens, where we still rely on doxycycline [to treat] in rare cases,” said Dr. Marrazzo.

Finally, Dr. Marrazzo discussed the role of STI treatment in the effort to eradicate HIV. Should the Getting to 0 strategies include aggressive prevention and treatment of STIs? Despite the potentiating role of some STIs in the spread HIV, some urban areas are approaching zero new infections even as other STIs remain a problem. It could be that undetectable = untransmittable, regardless of the presence an STI. Some view targeting STIs as a regressive practice in a setting where the U=U mantra has opened up an era of sexual freedom living with or at risk of HIV.

On the other hand, there are also good arguments to target STIs while trying to eliminate HIV. Results from high-resource locales such as San Francisco and New York City are unlikely to be replicated in places like Sub-Saharan Africa. The public health burden of STIs is extensive, and antibiotic resistance and antibiotic shortages can make treatment difficult. The situation is also different for women, who may experience impacts on fertility or pregnancies, and do not have the same freedom as men in many countries. “Stigma is highly operative and I would wager that sexual pleasure and freedom remain a very elusive goal for women across the globe,” said Dr. Marrazzo.

Dr. Marrazzo has a research grant/grant pending from Cepheid, and is on the advisory panels of BioFire and Gilead.

SEATTLE – Sexually-transmitted infections (STIs) such as gonorrhea, chlamydia, and syphilis are on the rise among HIV-infected individuals, and emerging antimicrobial resistance in these organisms is presenting serious challenges to physicians. The issue may be traceable to the introduction of preexposure prophylaxis (PrEP) in 2011, which previous studies have shown to be associated with less condom use.

CDC

In the United States, a 2017 report by the Centers for Disease Control and Prevention showed rising incidences of chlamydia (+5% from 2015 to 2017), gonorrhea (+19%), and syphilis (+18%). “We have an incidence among men who have sex with men [MSM] that is above the pre-AIDS era estimates, and we have evidence of spread into heterosexual networks, and a very scary collision with the methamphetamine and heroine using networks,” said Jeanne Marrazzo, MD, professor of infectious diseases at the University of Alabama at Birmingham.

But the numbers alone don’t tell the whole story. “It’s not just the burden of these infections. What’s characterizing these trends is that we have continuing evolution of microbial resistance, which is really a crisis,” Dr. Marrazzo added during a plenary she delivered at the Conference on Retroviruses & Opportunistic Infections.

These infections also remain intricately linked with HIV. An analysis of syphilis cases found that 88% occurred in men. Of those, 80% were MSM. Of the cases in MSM, 46% were coinfected with HIV. “Those are incredible rates,” said Dr. Marrazzo. Among women, the trends are even more alarming. There has been a greater than 150% increase in primary/secondary and congenital syphilis between 2013 and 2017.

Resistance to ceftriaxone and azithromycin remains on the rise in gonorrhea, with 24% of countries reporting at least a 5% incidence of strains that are less susceptible or resistant to ceftriaxone, and 81% of countries reporting similar trends with azithromycin.

In the absence of new drugs to overcome that resistance, or vaccines that can prevent gonorrhea and other infections, what are clinicians to do?

One option may be postexposure doxycycline. One trial in MSM showed that a 200-mg dose taken 24-72 hours after sex was associated with about a 70% increase in both time to first chlamydia and time to first syphilis infection, though no effect was seen on gonorrhea infections. “We shouldn’t be surprised. We know that gonorrhea is classically resistant to tetracyclines, and the MSM population has the highest prevalence of antimicrobial resistance in gonorrhea,” said Dr. Marrazzo.

There are pros and cons to this strategy, of course. On the one hand, doxycycline works for chlamydia and syphilis, it’s safe, and it’s easy to administer. “We’re up a tree when it comes to syphilis, so why not?” opined Dr. Marrazzo. In fact, some MSM have read the literature and are already using it prophylactically. But there are downsides, including adverse effects such as esophagitis/ulceration and photosensitivity, and it is contraindicated in pregnant women. And then there’s the potential for evolving greater resistance. “The horse is out of the barn with respect to gonorrhea, but I think it’s worth thinking about resistance to other pathogens, where we still rely on doxycycline [to treat] in rare cases,” said Dr. Marrazzo.

Finally, Dr. Marrazzo discussed the role of STI treatment in the effort to eradicate HIV. Should the Getting to 0 strategies include aggressive prevention and treatment of STIs? Despite the potentiating role of some STIs in the spread HIV, some urban areas are approaching zero new infections even as other STIs remain a problem. It could be that undetectable = untransmittable, regardless of the presence an STI. Some view targeting STIs as a regressive practice in a setting where the U=U mantra has opened up an era of sexual freedom living with or at risk of HIV.

On the other hand, there are also good arguments to target STIs while trying to eliminate HIV. Results from high-resource locales such as San Francisco and New York City are unlikely to be replicated in places like Sub-Saharan Africa. The public health burden of STIs is extensive, and antibiotic resistance and antibiotic shortages can make treatment difficult. The situation is also different for women, who may experience impacts on fertility or pregnancies, and do not have the same freedom as men in many countries. “Stigma is highly operative and I would wager that sexual pleasure and freedom remain a very elusive goal for women across the globe,” said Dr. Marrazzo.

Dr. Marrazzo has a research grant/grant pending from Cepheid, and is on the advisory panels of BioFire and Gilead.

NEW ORLEANS – When HIV-negative children born to mothers infected with HIV are evaluated in adolescence, they are found to have far higher rates of obesity and reactive airway disease than are those with no such exposure, according to research that provides a compelling link between inflammatory activity in utero and subsequent risk of metabolic disorders.

Most supportive of that link was a near-linear inverse relationship between CD4 counts during the time of pregnancy and risk of both obesity and reactive respiratory disease more than a decade later, according to research presented by Lindsay Fourman, MD, an instructor in medicine at Massachusetts General Hospital, Boston, during the annual meeting of the Endocrine Society.

In this video interview, Dr. Fourman discusses the effort to understand the long-term health consequences of being exposed to HIV and antiretroviral therapies while in utero, a group known by the acronym HIV-exposed uninfected (HEU). With effective therapies now routinely preventing mother-to-child transmission, this population of children is growing quickly.

For this study, 50 HEU individuals were identified from a patient database. They were matched in a 3:1 ratio to a control group for a variety of demographic and socioeconomic variables. At a median age of 18 years, the HEU population was found to have a “strikingly” higher rate of obesity, compared with controls (42% vs. 25%, respectively; P = .04). The rate of reactive airway disease was similarly increased in the HEU group (40% vs. 24%; P = .04).

These data are important for considering health risks in an HEU population, but Dr. Fourman explained that it provides support for looking at metabolic risks from other in utero exposures linked to upregulated inflammation, such as gestational diabetes or obesity.

Dr Fourman and her colleagues reported no disclosures or financial conflicts of interest.

SOURCE: Fourman L et al. ENDO 2019, Session P10 (SAT-256).

NEW ORLEANS – When HIV-negative children born to mothers infected with HIV are evaluated in adolescence, they are found to have far higher rates of obesity and reactive airway disease than are those with no such exposure, according to research that provides a compelling link between inflammatory activity in utero and subsequent risk of metabolic disorders.

Most supportive of that link was a near-linear inverse relationship between CD4 counts during the time of pregnancy and risk of both obesity and reactive respiratory disease more than a decade later, according to research presented by Lindsay Fourman, MD, an instructor in medicine at Massachusetts General Hospital, Boston, during the annual meeting of the Endocrine Society.

In this video interview, Dr. Fourman discusses the effort to understand the long-term health consequences of being exposed to HIV and antiretroviral therapies while in utero, a group known by the acronym HIV-exposed uninfected (HEU). With effective therapies now routinely preventing mother-to-child transmission, this population of children is growing quickly.

For this study, 50 HEU individuals were identified from a patient database. They were matched in a 3:1 ratio to a control group for a variety of demographic and socioeconomic variables. At a median age of 18 years, the HEU population was found to have a “strikingly” higher rate of obesity, compared with controls (42% vs. 25%, respectively; P = .04). The rate of reactive airway disease was similarly increased in the HEU group (40% vs. 24%; P = .04).

These data are important for considering health risks in an HEU population, but Dr. Fourman explained that it provides support for looking at metabolic risks from other in utero exposures linked to upregulated inflammation, such as gestational diabetes or obesity.

Dr Fourman and her colleagues reported no disclosures or financial conflicts of interest.

SOURCE: Fourman L et al. ENDO 2019, Session P10 (SAT-256).

NEW ORLEANS – When HIV-negative children born to mothers infected with HIV are evaluated in adolescence, they are found to have far higher rates of obesity and reactive airway disease than are those with no such exposure, according to research that provides a compelling link between inflammatory activity in utero and subsequent risk of metabolic disorders.

Most supportive of that link was a near-linear inverse relationship between CD4 counts during the time of pregnancy and risk of both obesity and reactive respiratory disease more than a decade later, according to research presented by Lindsay Fourman, MD, an instructor in medicine at Massachusetts General Hospital, Boston, during the annual meeting of the Endocrine Society.

In this video interview, Dr. Fourman discusses the effort to understand the long-term health consequences of being exposed to HIV and antiretroviral therapies while in utero, a group known by the acronym HIV-exposed uninfected (HEU). With effective therapies now routinely preventing mother-to-child transmission, this population of children is growing quickly.

For this study, 50 HEU individuals were identified from a patient database. They were matched in a 3:1 ratio to a control group for a variety of demographic and socioeconomic variables. At a median age of 18 years, the HEU population was found to have a “strikingly” higher rate of obesity, compared with controls (42% vs. 25%, respectively; P = .04). The rate of reactive airway disease was similarly increased in the HEU group (40% vs. 24%; P = .04).

These data are important for considering health risks in an HEU population, but Dr. Fourman explained that it provides support for looking at metabolic risks from other in utero exposures linked to upregulated inflammation, such as gestational diabetes or obesity.

Dr Fourman and her colleagues reported no disclosures or financial conflicts of interest.

SOURCE: Fourman L et al. ENDO 2019, Session P10 (SAT-256).

Measles cases just set a new weekly high for 2019, and the total number for the year is already the second highest in the last decade, according to the Centers for Disease Control and Prevention.

The 73 new cases of measles reported to the CDC during the week ending March 28 – more than any other single week so far in 2019 – brings the total number of cases for the year to 387, the CDC reported April 1. That surpasses the 372 reported in 2018 and is now the highest annual count since 667 cases were reported in 2014.

The ongoing outbreak in Rockland County, N.Y., which resulted in 6 new cases there last week and 52 for the year, prompted County Executive Ed Day to declare a state of emergency effective March 27 that bars unvaccinated individuals under age 18 years from public places for the next 30 days unless they receive an MMR vaccination.

“As this outbreak has continued our inspectors have begun to meet resistance from those they are trying to protect. They have been hung up on or told not to call again. They’ve been told ‘we’re not discussing this, do not come back,’ when visiting the homes of infected individuals as part of their investigations. This type of response is unacceptable and irresponsible. It endangers the health and well-being of others and displays a shocking lack of responsibility and concern for others in our community,” Mr. Day said in a written statement.


In addition to Rockland County, the CDC is currently tracking five other outbreaks: New York City, mainly Brooklyn (33 new cases last week); Washington state (74 cases for the year, but no new cases in the last week); New Jersey (10 total cases, with 8 related to an outbreak in Ocean and Monmouth Counties); and two in California (16 total cases, with 11 related to the outbreaks). One of the California outbreaks and the New Jersey outbreak are new, but the CDC is no longer reporting outbreaks in Texas and Illinois, so the total stays at six nationwide.

In related news from California, state Sen. Richard Pan (D), a pediatrician, and Assemblywoman Lorena Gonzalez (D) introduced a bill to monitor vaccine exemptions “by requiring the state health department to vet each medical exemption form written by physicians [and to] maintain a database of exemptions that would allow officials to monitor which doctors are granting the exemptions,” the Los Angeles Times reported.

[email protected]

Measles cases just set a new weekly high for 2019, and the total number for the year is already the second highest in the last decade, according to the Centers for Disease Control and Prevention.

The 73 new cases of measles reported to the CDC during the week ending March 28 – more than any other single week so far in 2019 – brings the total number of cases for the year to 387, the CDC reported April 1. That surpasses the 372 reported in 2018 and is now the highest annual count since 667 cases were reported in 2014.

The ongoing outbreak in Rockland County, N.Y., which resulted in 6 new cases there last week and 52 for the year, prompted County Executive Ed Day to declare a state of emergency effective March 27 that bars unvaccinated individuals under age 18 years from public places for the next 30 days unless they receive an MMR vaccination.

“As this outbreak has continued our inspectors have begun to meet resistance from those they are trying to protect. They have been hung up on or told not to call again. They’ve been told ‘we’re not discussing this, do not come back,’ when visiting the homes of infected individuals as part of their investigations. This type of response is unacceptable and irresponsible. It endangers the health and well-being of others and displays a shocking lack of responsibility and concern for others in our community,” Mr. Day said in a written statement.


In addition to Rockland County, the CDC is currently tracking five other outbreaks: New York City, mainly Brooklyn (33 new cases last week); Washington state (74 cases for the year, but no new cases in the last week); New Jersey (10 total cases, with 8 related to an outbreak in Ocean and Monmouth Counties); and two in California (16 total cases, with 11 related to the outbreaks). One of the California outbreaks and the New Jersey outbreak are new, but the CDC is no longer reporting outbreaks in Texas and Illinois, so the total stays at six nationwide.

In related news from California, state Sen. Richard Pan (D), a pediatrician, and Assemblywoman Lorena Gonzalez (D) introduced a bill to monitor vaccine exemptions “by requiring the state health department to vet each medical exemption form written by physicians [and to] maintain a database of exemptions that would allow officials to monitor which doctors are granting the exemptions,” the Los Angeles Times reported.

[email protected]

Measles cases just set a new weekly high for 2019, and the total number for the year is already the second highest in the last decade, according to the Centers for Disease Control and Prevention.

The 73 new cases of measles reported to the CDC during the week ending March 28 – more than any other single week so far in 2019 – brings the total number of cases for the year to 387, the CDC reported April 1. That surpasses the 372 reported in 2018 and is now the highest annual count since 667 cases were reported in 2014.

The ongoing outbreak in Rockland County, N.Y., which resulted in 6 new cases there last week and 52 for the year, prompted County Executive Ed Day to declare a state of emergency effective March 27 that bars unvaccinated individuals under age 18 years from public places for the next 30 days unless they receive an MMR vaccination.

“As this outbreak has continued our inspectors have begun to meet resistance from those they are trying to protect. They have been hung up on or told not to call again. They’ve been told ‘we’re not discussing this, do not come back,’ when visiting the homes of infected individuals as part of their investigations. This type of response is unacceptable and irresponsible. It endangers the health and well-being of others and displays a shocking lack of responsibility and concern for others in our community,” Mr. Day said in a written statement.


In addition to Rockland County, the CDC is currently tracking five other outbreaks: New York City, mainly Brooklyn (33 new cases last week); Washington state (74 cases for the year, but no new cases in the last week); New Jersey (10 total cases, with 8 related to an outbreak in Ocean and Monmouth Counties); and two in California (16 total cases, with 11 related to the outbreaks). One of the California outbreaks and the New Jersey outbreak are new, but the CDC is no longer reporting outbreaks in Texas and Illinois, so the total stays at six nationwide.

In related news from California, state Sen. Richard Pan (D), a pediatrician, and Assemblywoman Lorena Gonzalez (D) introduced a bill to monitor vaccine exemptions “by requiring the state health department to vet each medical exemption form written by physicians [and to] maintain a database of exemptions that would allow officials to monitor which doctors are granting the exemptions,” the Los Angeles Times reported.

[email protected]