Does being on HIV antiretroviral therapy increase the risk of syphilis? An analysis of a large national cohort of MSM living with HIV in England 2009–2016

Allen, Hester; Kirwan, Peter; Brown, Alison E; Mohammed, Hamish; Hughes, Gwenda; Marks, Michael; Delpech, Valerie

doi:10.1136/sextrans-2020-054603

Does being on HIV antiretroviral therapy increase the risk of syphilis? An analysis of a large national cohort of MSM living with HIV in England 2009–2016

Objective A resurgence in bacterial STIs, notably syphilis, among gay, bisexual and other men who have sex with men (MSM) has been detected in England. A Canadian modelling study postulated that antiretroviral therapy (ART) may increase susceptibility to syphilis. We assess the association betwee…