Figure 44. Primary and Secondary Syphilis — Percentage of Reported Cases* by Sex, Sexual Behavior, and Selected Reporting Sources, 2013
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* Of all cases, 5.6% had a missing or unknown reporting source. Among cases with a known reporting source the categories presented represent 74.0% of cases; 26.0% were reported from sources other than those shown.
† HMO = health maintenance organization; MSM = men who have sex with men; MSW = men who have sex with women only.
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