Syphilis, Primary & Secondary in Males by Sexual Orientation (Marion County, 2012-2016)About 90% of primary and secondary syphilis cases in Marion County are in men. Case rates of primary and secondary syphilis for men who have sex with men (MSM) have remained much higher than for men who have sex with women only (MSW). In 2012, the estimated rate for MSM was about 78 times higher than for MSW, and in 2016, the estimated rate for MSM was about 80 times higher than for MSW. [DR3530]
