Report a Disease
During Business Hours (Monday-Friday 8:00 am - 5:00 pm)
To report an URGENT communicable disease concern during business hours, call
For non-urgent communicable diseases, please download and complete a Confidential Morbidity Report (CMR) below. The second page of the CMR lists all reportable disease and guidelines for reporting.
- CMR Form for ALL Reportable Diseases, except HIV, TB, and Lapse of Consciousness.
- CMR Form for Tuberculosis
- CMR Form for Disorders resulting in Lapse of Consciousness, Alzheimer's Disease
For Zika virus and other tests requiring a Viral and Rickettsial Disease Lab form , please search for” VRDL Specimen Submittal Form” to access the current version of the form online. Please note that VRDL work flow requires completion of all the information online before printing the form to accompany the specimen.
HIV/AIDS reporting guidelines are posted here or you may call the Yolo County HIV/AIDS Program Coordinator at (530) 666-8670 to report. Please do NOT fax HIV/AIDS reports.
During Non-Business Hours (evenings, weekends, and holidays)
The Yolo County Health Department is accessible after hours and on holidays at
for URGENT communicable disease concerns. Please be prepared to provide the dispatcher with your name, affiliation, the nature of the report or emergency and a phone number where you can be contacted by the Yolo County Health Department on-call staff.