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Communicable Disease Control Division

The HCA Public Health Services Communicable Disease Control Division is committed to preventing and controlling the spread of infectious disease in our community. We work collaboratively with local healthcare providers, government agencies, and community partners to identify outbreaks of disease and develop strategies to limit their further spread. Our team monitors disease surveillance data to track trends over time and to define emerging concerns and vulnerable populations. We provide clinical and epidemiological guidance to residents, providers, and the broader community. In addition, we may also assist with diagnosis, treatment, and preventative services such as vaccination and prophylactic treatment when needed. 

The Communicable Disease Control Division is dedicated to protecting the health and wellbeing of our community. Together we can prevent and control the spread of communicable diseases.

For more information or CD reporting 24/7 call 714-834-8180, you can also email us at

California Code of Regulations, Title 17, Section 2500, mandates that certain communicable and non-communicable diseases/conditions be reported to the local health department using specified methods and time frames. The List of Mandated Reportable Diseases in Orange County, which summarizes disease reporting requirements for providers, may be downloaded from this website and freely copied. In addition, clinical laboratories serving California residents are mandated to report specific clinical positive results according to the List of Laboratory Reportable Diseases.