California Department of Food and Agriculture

Reporting Animal Diseases

The diseases listed on this page are some of the more important reportable diseases  to California agriculture; however they are not inclusive of all reportable diseases.

The List of Reportable Diseases includes all disease that must be reported to the Department. The list does not represent all diseases known in animals.

WHO MUST REPORT: Any licensed veterinarian, any person operating a diagnostic laboratory, or any person who has been informed, recognizes or should recognize by virtue of education, experience, or occupation, that any animal or animal product is or may be affected by, or has been exposed to, or may be transmitting or carrying any of the following conditions, must report that information.

WHAT TO REPORT: Any animal disease not known to exist in the United States, any disease for which a control program exists, or any unexplained increase in the number of diseased animals or deaths must be reported. Any conditions caused by exposure to toxic substances that have or may have the potential to be a public health, animal health, or food safety threat must be reported within 24 hours.


Animal Health Branch - District Offices:

  • Redding: 530-225-2140
  • Modesto: 209-491-9350
  • Tulare: 559-685-3500
  • Ontario: 909-947-4462


US Department of Agriculture
Animal and Plant Health Inspection Services Veterinary Services (VS)
10365 Old Placerville Road, Suite 210
Sacramento, CA 95827-2518
Toll free at 1-877-741-3690

Livestock Disease and Health Information by Species