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Syphilis is a sexually-transmitted infectious disease caused by the spirochete Treponema pallidum. Syphilis has three main stages: primary syphilis, secondary syphilis, and tertiary syphilis. About a third of untreated individuals with primary syp...
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Syphilis is a sexually transmitted disease (STD) caused by Treponema pallidum , a spirochete that can be transmitted during vaginal, anal, or oral sex. An estimated 70,000 syphilis cases occur in the United States annually.
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