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Infectious Diseases Branch

The CDPH Infectious Diseases Branch (IDB) conducts surveillance, investigation, control, and prevention of many important infectious diseases in California, including botulism, coccidioidomycosis (Valley fever), foodborne, waterborne, vector-borne, zoonotic, and emerging infectious diseases. IDB activities are in four Sections:
 
  1. The Disease Investigations Section (DIS) covers enteric infections, most of which are foodborne (e.g., Salmonella, Campylobacter, Shiga toxin-producing E. coli [STEC]); and Valley fever, botulism, legionellosis, and other diseases.
  2. The Vector-Borne Disease Section (VBDS) oversees mosquito-borne diseases such as West Nile virus and Zika; tick-borne diseases such as Lyme disease and tick-borne relapsing fever; and rodent- and flea-borne diseases such as hantavirus and plague.
  3. The Veterinary Public Health Section (VPHS) provides expertise on infectious diseases transmitted between animals and people, including rabies, psittacosis, Q fever, and trichinellosis.
  4. The Surveillance and Statistics Section (SSS) collects, processes, analyzes, and disseminates reported data on cases and outbreaks of IDB diseases.
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