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.

San Bernardino, CA
Outbreak Identifier: 4053
Alert ID: 1542
December 09, 2019
Confirmed Case(s) - Official Quarantine

California Department of Food and Agriculture

Number Confirmed: 10;
Number Exposed: 11;

Notes: Outbreak update 12/9/2019: No new cases. Four (4) of the EHV-1 positive horses have had two (2) negative tests seven (7) days apart. The other three (3) EHV-1 positive horses have not yet met the testing requirement so the entire premise is still under quarantine. CDFA continues to monitor the situation.