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The mission of the California Department of Pu​blic Healt​h (CDPH) Sexually Transmitted Diseases (STD) Control Branch is to reduce the transmissi​on and impact of sexually transmitted infections (STI), mpox and viral hepatitis in California, particula​rly among communities disproportionately affected by these infections. Because diversity, equity and inclusion are at the core of our public health work, STD Control Branch 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, STD Control Branch 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.​​​