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 Herpesvirus- Neurologic

Orange County, CA

Outbreak Identifier: 5101

Alert ID: 2523

March 31, 2022

Quarantine Released

Source: California Department of Food and Agriculture

Number Confirmed: 27;
Age: 8; Gender: Mare; Breed: Selle Francais; Onset of Clinical Signs: 3/29/2022;
Clinical Signs: Neuro (ataxia, incoordination, urine dribbling); Confirmation Date: 3/30/2022; Horse Status: Affected And Alive;
Notes: Update 3/30/2022: One (1) additional horse on the premises displaying neurological clinical signs was confirmed positive for EHV-1 on March 30th. The horse is alive and under veterinary care. To date, there have been three (3) confirmed EHM cases (EHV-1 infection with neurological signs) and twenty-four (24) positive EHV-1 fever-only or mild clinical cases on this premises. CDFA is actively monitoring the situation.;

Search for County

Disease Alerts