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Disease surveillance is the ongoing systematic collection, collation, analysis and interpretation of data and the dissemination of information to prevent and control the spread of diseases. Communicable disease control efforts rely on an effective surveillance and response system that promotes collaboration, coordination and communication among public health and clinical professionals.  All medical professionals, healthcare providers, infection control practitioners, medical examiners, coroners, dentists, veterinarians and administrators of health facilities and clinics knowing of a case or suspected case of a communicable disease are legally required to report it to the health department. Medical laboratories are also required to report communicable diseases (CCR, Title 17, Section 2505).  

Reportable Diseases and Conditions 

(Title 17, California Code of Regulations (CCR) §2500) 

It shall be the duty of every health care provider, knowing of or in attendance on a case or suspected case of any of the diseases or conditions listed below, to report to the local health officer for the jurisdiction where the patient resides. Where no healthcare provider is in attendance, any individual having knowledge of a person who is suspected to be suffering from one of the diseases or conditions listed below may make such a report to the local health officer for the jurisdiction where the patient resides.

List of Reportable Diseases and Conditions: Updated 09/13/2022
CRE Reporting Requirements
Influenza Reporting Requirements
CalREDIE Account Request Portal

Health Updates

7.2.2020 Addition of COVID-19 Related Deaths & Candida auris to Reportable Diseases & Conditions List
3.5.2020 Addition of COVID-19 to Reportable Diseases and Conditions List
9.13.2019 CDPH Update to Title 17 List of Reportable Diseases  
6.7.2018 CDC Recommendations for Managing and Reporting Shigella Infections with Possible Reduced Susceptibility to Ciproflaxin