Last reviewed January 30, 2019.

List of Reportable DiseasesList of Reportable Diseases (in Orange County) (06/2025)List of Laboratory Reportable Diseases (in California)California Code of Regulations, Title 17, Section 2500,…

For more information about the Orange County Health Care Agency Office of Compliance, to ask questions about your medical privacy, or report a concern or complaint, please reach out to the Orange…

Advisories and Newsletters Frequently Asked Questions

  Photo Source: https://phil.cdc.gov//PHIL_Images/201/201_lores.jpg Acinetobacter is a type of bacteria commonly found in soil and water. There are many species of…

What is avian influenza? Three subtypes of avian influenza A viruses are known to infect people: H5, H7 and H9 viruses. Among these, Asian-lineage H5N1 and H7N9 have caused the majority of human…

Acute flaccid myelitis (AFM) is a rare but serious condition that affects the nervous system, specifically the spinal cord, and causes suddenonset of weakness in limbs (one or more arms or legs) and…

        Photo Source: https://phil.cdc.gov/Details.aspx?pid=7824 Staphylococcus aureus (“Staph”; S. aureus) is a bacteria commonly found on…

Hands are the most common mode of transmission of disease causing agents. By washing your hands, you can prevent the spread of many infectious diseases and lower your risk of getting, or passing…

Pertussis Orange County and California have seen a large increase in pertussis cases in 2014. Orange County has had twice as many reports of pertussis so far this year compared to the same time…