Men account for the most cases of syphilis, with the vast majority of those cases occurring among men who have sex with men (MSM).
- STI Prevalence, Incidence, Cost Estimates in the United States (January 25, 2021)
- STD Surveillance 2018 – Syphilis (October 8, 2019)
- Increase in Incidence of Congenital Syphilis — United States, 2012–2014 MMWR November 13, 2015
- STD Health Equity
Image Source: Figure 39 from STD Surveillance 2018
Page last reviewed: January 25, 2021