Syphilis

Syphilis is a common sexually transmitted infection (STI) caused by Treponema pallidum bacteria. If untreated, syphilis can result in adult neurological and organ damage as well as congenital abnormalities, stillbirth, and neonatal death. After decades of relatively low prevalence, syphilis cases have risen sharply since 2000. NIAID participates in the National Syphilis and Congenital Syphilis Syndemic Federal Task Force and supports a broad syphilis research portfolio with a goal of advancing syphilis diagnosis, prevention and treatment. 

Related Public Health and Government Information

Read the Syphilis Fact Sheet the Center for Disease Control and Prevention (CDC).

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