Acute Communicable Disease

HIV/AIDS and STDS

HIV in Alameda County 2021 – 2023 
Published February 2025

Alameda County Congenital Syphilis Fact Sheet
Published May 2025

We conducted a 5-year retrospective case review of all congenital syphilis cases in Alameda County from 2019 to 2023. During this period, 57 infants were born with congenital syphilis to 54 birthing persons, representing a 218% increase over time.

Tuberculosis

Alameda County Tuberculosis Fact Sheet
Published March 2026

Other Data

Vaccine-Preventable Diseases in Alameda County, 2019-2023 Fact Sheet
Published October 2025

Provides a summary of vaccine-preventable disease cases among Alameda County residents from 2019-2023. Data include case counts and rates; and demographic, clinical, and epidemiologic factors, as well as recommendations for providers.

Carbapenem-Resistant Organisms in Alameda County, 2023 Fact Sheet
Published August 2025

Provides a summary of Carbapenem-Resistant Organism cases among Alameda County residents in 2023. Data include case counts and rates, carbapenemase gene epidemiology, and recommendations for providers.

Mosquito-borne Disease in Alameda County, 2019-2023 Fact Sheet
Published May 2025

Provides a summary of mosquito-borne disease cases among Alameda County residents from 2019-2023. Data include case counts and rates; and demographic, clinical, and epidemiologic factors, as well as recommendations for providers.