Breaking News
National Equine Health Stakeholder Call-October 2026
Learn More

Disease Alerts

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.



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.

Strangles
Los Angeles County, CA
Outbreak Identifier: 4657
Alert ID: 2045
April 23, 2021
Confirmed Case(s) - Voluntary Quarantine

Attending Veterinarian

Number Confirmed: 1;
Number Exposed: 1;
Facility Type: Private Facility;
Age: 12; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 4/19/2021;
Clinical Signs: Cough, Fever, lethargy, Nasal Discharge; Confirmation Date: 4/21/2021; Horse Status: Recovering; Vaccination Status: Status Unknown;
Notes: The horse and 2 others in same family hauled from Colorado to a rodeo then to a trainer in California. One was sick and treated at the trainer's facility and the other two then were transported to the owner's home in my practice area. For more information about Strangles go to https://aaep.org/sites/default/files/Documents/Outside%20Linked%20Documents/DiseaseFactsheet-Strep_equi_final%20Cobranded_0.pdf
Search for County