The incidence rate of syphilis in people with HIV increased through 2015, according to new research published in Clinical Infectious Diseases.
Since 2000, the incidence of syphilis has increased among gay, bisexual, and other men who have sex with men (MSM) in the United States. This represents an ongoing sexual risk, and temporal trends and associated risk factors for newly diagnosed syphilis infections among people with HIV were therefore investigated.
Data from HIV Outpatient Study cohort participants visiting 10 clinics in the United States from 1999 to 2015 were analyzed. A total of 6888 participants with HIV were included, and 641 had one or more new syphilis diagnoses during a median follow period of 5.2 years. Participants were mostly male, age 31 to 50 years (78%), and the majority were MSM (56%).