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

Wagoner County, OK

Outbreak Identifier: 7434

Type: EHV-1

Alert ID: 4999

May 12, 2026

Ongoing Investigation

Source: State Veterinarian

Number Confirmed: 1;
Number Suspected: Unknown;
Number Exposed: Unknown;

Horse 1:
Age: 8; Gender: Mare; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 5/5/2026; Clinical Signs: Neurologic-rear limbs, unable to stand. Bilateral nasal discharge. Bladder atony.; Confirmation Date: 5/12/2026;

Comments: Tracing efforts are ongoing; however, no additional EHV-1 positive horses or horses with clinical signs consistent with EHV-1 have been identified to date.;

Search for County

Disease Alerts