Syphilis, HIV and other STI positivity in clients presenting as contacts of syphilis at Sydney Sexual Health Centre.

There is a paucity of contemporary data pertaining to sexually transmitted infection test positivity of people presenting as contacts of syphilis. Over a 12 month period in 2018, within a sexual health service, we identified 191 (92% men who have sex with men) presentations, 7.8% were diagnosed with syphilis (three primary, four secondary, six early latent and two late latent infections). A total of 20.8% (38/183) were diagnosed with one or more STI including 54 non-syphilis infections: two (1.1%) new HIV; 26 (14.2%) Chlamydia trachomatis; and 24 (13.1%) Neisseria gonorrhoeae. Although syphilis test positivity in contacts is low, this population requires comprehensive STI screening and HIV prevention discussion.