Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

Disease

Outbreak States

Start Date

End Date

Search by Alert ID

Search by Outbreak ID

1 Week

2 Weeks

1 Month

2 Months

3 Months

3+ Months

No Results

The color range is based off of the selected End Date. If the End Date doesn't have a value it will use Today's Date.

Equine Infectious Anemia

Los Angeles County, CA

Outbreak Identifier: 7698

Alert ID: 5274

September 28, 2026

Confirmed Case(s) - Official Quarantine

Source: California Department of Food and Agriculture

Number Confirmed: 1;
Number Exposed: 43;
Number Euthanized: 1;

Horse 1:
Age: 17; Gender: Gelding; Breed: Thoroughbred (TB); Horse Status: Euthanized;

Comments: A 17–year–old Thoroughbred gelding in Los Angeles County was confirmed positive for Equine Infectious Anemia (EIA). Forty-three (43) potentially exposed horses on the home premises have initially tested negative for EIA and will remain under quarantine until their sixty (60) day retest as per CDFA and USDA program requirements. CDFA has been on site with continued monitoring of the situation.;

Search for County

Disease Alerts