May 31st, 2023
The Northwest Horse Source
The Northwest Horse Source is your all breed, all discipline resource covering the care, training, keeping and enjoyment of horses. Check out the latest Outbreak Alerts!
Potomac Horse Fever
This alert is an equine related disease outbreak or other emergency, disaster, or critical announcement in our distribution area. Alerts regularly include Washington, Oregon, Idaho, California, and sometimes Utah, Nevada, Wyoming and Arizona.

Outbreak Alerts: May 31, 2023 Strangles in Snohomish County, WA

Source: State Vet Office

Confirmed Case(s) - Voluntary Quarantine

Number Confirmed: 1
Number Exposed: Unknown
Facility Type: Boarding Facility
Comments: The facility is under private veterinarian care and voluntary quarantine. Monitoring temperature and symptoms in possibly exposed horses. No issues observed in two weeks.

For more information, go to https://www.equinediseasecc.org/strangles

See past published Outbreak Alerts: http://nwhorsesource.com/category/news/alerts

Outbreak Alerts: May 31, 2023 Strangles in Clallam County, WA

Source: State Vet Office

Confirmed Case(s) - Voluntary Quarantine

Comments: private veterinary oversight on owners property. Voluntary quarantine.

For more information, go to https://www.equinediseasecc.org/strangles

See past published Outbreak Alerts: http://nwhorsesource.com/category/news/alerts

Outbreak Alerts: May 30, 2023 - Equine Herpesvirus- Neurologic in San Luis Obispo County, CA

Confirmed Case(s) - Official Quarantine

Source: California Department of Food and Agriculture

Number Confirmed: 1
Number Exposed:
42
Facility Type:
Boarding Facility
Age:
19
Gender: Mare
Breed: Paint
Usage: Pleasure Riding
Onset of Clinical Signs: 5/19/2023
Clinical Signs:
Ataxia, urine dribbling and bladder atony.
Confirmation Date: 5/26/2023
Horse Status: Affected And Alive
Vaccination Status: Vaccinated

Comments:
May 30, 2023: A 19-year-old Paint mare in San Luis Obispo county displaying neurological signs was confirmed positive for Equine Herpesvirus Myeloencephalopathy (EHM) secondary to Equine Herpesvirus-1 (EHV-1, non-neuropathogenic strain) on May 26th. The mare is currently quarantined under veterinary care at an offsite hospital, also in San Luis Obispo County. Forty (40) potentially exposed horses on the mare’s home premises have also been quarantined. Additionally, out of an abundance of caution, two (2) horses at the offsite veterinary hospital have been quarantined due to low possibility of exposure. The index horse has not had any recent show or travel history. CDFA was onsite to implement enhanced biosecurity on both premises and will monitor the situation closely. No additional clinical signs or cases have been reported since confirmation. For more information and updates, go to: https://www.cdfa.ca.gov/ahfss/Animal_Health/equine_herpes_virus.html;

See past published Outbreak Alerts: http://nwhorsesource.com/category/news/alerts

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