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2023 STI Data in California
Data shows a decrease in the number of STIs in 2023 compared to 2022.
Access STI Data
Mpox Information & Resources
Frequently asked questions about mpox and helpful resources.
Access mpox resources
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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Mpox Information & Resources Frequently asked questions about mpox and helpful resources.
The mission of the California Department of Public Health (CDPH) Office of Sexually Transmitted Infections (STIs) and Hepatitis C Virus (HCV) 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.