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Syphilis Statistics

Men account for the most cases of syphilis, with the vast majority of those cases occurring among men who have sex with men (MSM).

Primary and Secondary Syphilis — Distribution of Cases by Sex and Sexual Behavior, 2017

Figure 39. Pie chart showing the distribution of primary and secondary syphilis cases in the United States in 2017 by sex and sexual behavior.

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Image Source: Figure 39 from STD Surveillance 2017

 

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