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Figure 43. Primary and Secondary Syphilis — Percentage of Reported Cases* by Sex, Sexual Behavior, and Selected Reporting Sources, 2015

This web page is archived for historical purposes and is no longer being updated. Newer data is available on the STD Data and Statistics page.


Figure 43. Bar graph showing percentage of reported cases* of primary and secondary syphilis in 2015 by sex, sexual behavior, and selected reporting sources.

* Of all primary and secondary cases, 7.4% had a missing or unknown reporting source. Among all cases with a known reporting source, the reporting source categories presented represent 57.8% of cases; 42.2% were reported from sources other than those shown.

HMO = health maintenance organization; MSM = Gay, bisexual, and other men who have sex with men (collectively referred to as MSM); MSW = Men who have sex with women only.

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