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Infectious Diseases: Communicable Disease Office

The Ventura County Public Health Communicable Disease (CD) office detects, investigates, controls, and prevents the spread of communicable diseases in Ventura County. The CD office receives Confidential Morbidity Reports (CMR) from laboratories and health care providers for more than 85 legally reportable diseases. Our team investigates these reports, monitors emerging infectious diseases, analyzes disease trends in the county, and works closely with California Department of Public Health (CDPH) and Centers for Disease Control and Prevention (CDC). 

Health care providers are required to report all suspected and confirmed reportable cases of communicable diseases and/or other unusual diseases by filling out a CMR form. For information on how to report a disease/condition and to locate Ventura County Health Officer's Hot Tips and other important health announcements, click here.  

Current Diseases and Conditions of Concern:

Monkeypox (MPX)
Valley Fever

We’ve seen an increase in Valley Fever in the last 2 years, please click on the educational materials below to learn how you can reduce your risk.

For information about disease and conditions not listed above, please visit the CDC Disease and Conditions website

For information on the exclusion of students based on the disease type in a K-12 school setting, click here

CD Services Provided:

  • Epidemiological disease surveillance.
  • Outbreak management.
  • Infection prevention and control consultation services.
  • Contact tracing and case investigation.
  • Community outreach on health and safety education, early infection detection, and disease prevention.
  • Collaborate with other County agencies, such as Environmental Health for foodborne illness and Animal Services for rabies and other animals with human-related diseases.
  • Investigate pesticide exposure.

CD Office Contact Information:

1801 Solar Drive, Suite 250, Oxnard, CA 93030
Phone: 805-981-5201
FAX: 805-981-5200
Countywide toll free access: 800-781-4449, then dial 1-981-5201
Hours: Monday to Friday, 8 a.m. to 5 p.m.
After-hours phone: 805-214-7057


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