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2024 STI Data in California
Cases of chlamydia, gonorrhea, syphilis, and congenital syphilis decreased in California in 2024.
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Mpox Information & Resources
Frequently asked questions about mpox and helpful resources.
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Racial & Health Equity
Our mission is to reduce the transmission and impact of STIs and viral hepatitis.
Learn about our work
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2024 STI Data in California Cases of chlamydia, gonorrhea, syphilis, and congenital syphilis decreased in California in 2024.
The mission of the California Department of Public Health (CDPH) Office of Sexually Transmitted Infections (STIs) and Hepatitis C Virus (HCV), formerly the STD Control Branch, is to reduce the transmission and impact of sexually transmitted infections (STI), mpox and viral hepatitis in California, particularly among communities disproportionately affected by these infections. Because diversity, equity and inclusion are at the core of our public health work, the Office of STIs and HCV embraces and values the contributions of all communities across California to fulfill our public health mission. In collaboration with local health jurisdictions and other community partners in public and private sectors, the Office of STIs and HCV supports equitable STI, mpox and viral hepatitis prevention and control efforts by providing statewide leadership, policy, guidelines, training, technical assistance, surge capacity and outbreak response; and by supporting safety-net service delivery in priority settings and populations.