Outbreak Alerts: September 15, 2023 West Nile Virus in Canyon County, ID

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: State Department of Agriculture Number Confirmed: 1Number Suspected: Unknown Number Exposed: UnknownAge: 14Gender: GeldingBreed: Quarter Horse (QH)Confirmation Date: 9/15/2023Horse Status: Unknown See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The Northwest Horse Source is not responsible for the content of 3rd party submissions.


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Outbreak Alerts: September 15, 2023 West Nile Virus in Gem County, ID

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: State Department of Agriculture Number Confirmed: 1Number Suspected: Unknown Number Exposed: UnknownAge: 5Gender: MareBreed: Quarter Horse (QH)Confirmation Date: 9/15/2023Horse Status: Unknown See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The Northwest Horse Source is not responsible for the content of 3rd party submissions.


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  • Wendy Kondo
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Outbreak Alerts: September 15, 2023 West Nile Virus in Caribou County, ID

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: State Department of Agriculture Number Confirmed: 1Number Suspected: Unknown Number Exposed: UnknownAge: 3Gender: FillyOnset of Clinical Signs: 9/1/2023Clinical Signs: Started acting “off” and had a fever on 9/1/23, temp returned to normal 9/2/23 and became neurological and ataxic on 9/6/23. Has been on supportive care.Confirmation Date: 9/13/2023Horse Status: UnknownVaccination Status: Unvaccinated See past published Outbreak …

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  • Allison Blake

Outbreak Alerts: September 15, 2023 West Nile Virus in Bingham County, ID

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: State Department of Agriculture Number Confirmed: 1Number Suspected: Unknown Number Exposed: UnknownAge: 4Gender: FillyOnset of Clinical Signs: 9/12/2023Clinical Signs: NeurologicalConfirmation Date: 9/13/2023Horse Status: UnknownVaccination Status: Unvaccinated See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The Northwest Horse Source is not responsible for the content of 3rd party …

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Outbreak Alerts: September 14, 2023 West Nile Virus in Placer County, CA

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: UnknownAge: 14Gender: GeldingBreed: Quarter Horse (QH)Onset of Clinical Signs: 9/7/2023Clinical Signs: Acutely down and unable to rise, thrashing, mild muscle fasciculations.Confirmation Date: 9/12/2023Horse Status: EuthanizedVaccination Status: Status UnknownComments: This is the 21st case of equine WNV confirmed in CA in 2023.  For more information, go …

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Outbreak Alerts: September 12, 2023 Strangles in Clark County, WA

Potomac Horse Fever

Source: State Veterinarian Office Confirmed Case(s) – Voluntary Quarantine Number Confirmed: 2Number Suspected: 1Number Exposed: UnknownFacility Type: Boarding FacilityComments: Under vet care and voluntary quarantine. Will retest before turnout. For more information about Strangles, go to https://www.equinediseasecc.org/strangles See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The Northwest …

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  • Maria Danieli

Outbreak Alerts: September 11, 2023 Strangles in Clark County, WA

Potomac Horse Fever

Source: State Veterinarian Office Confirmed Case(s) – Voluntary Quarantine Number Confirmed: 1Number Suspected: 3Number Exposed: UnknownFacility Type: Private FacilityComments: Under voluntary quarantine and vet care. All four animals are yearlings. For more information about Strangles, go to https://www.equinediseasecc.org/strangles See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The …

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Outbreak Alerts: September 9, 2023 West Nile Virus in Weber County, UT

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: Utah Department of Agriculture and Food Number Confirmed: 1Number Exposed: Unknown See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The Northwest Horse Source is not responsible for the content of 3rd party submissions.


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Outbreak Alerts: September 9, 2023 West Nile Virus in Rich County, UT

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: Utah Department of Agriculture and Food Number Confirmed: 1Number Exposed: Unknown See past published Outbreak Alerts: https://www.nwhorsesource.com/category/news/alerts PressNews from the horse industry. Sharing today’s information as it happens. The Northwest Horse Source is not responsible for the content of 3rd party submissions.


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  • Wendy Kondo

Outbreak Alerts: September 8, 2023 West Nile Virus in Tulare County, CA

Potomac Horse Fever

Confirmed Case(s) – No Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: UnknownAge: 7Gender: MareBreed: PonyOnset of Clinical Signs: 8/14/2023Clinical Signs: Acute incoordination, ataxia all 4 limbs, depressed mentationHorse Status: RecoveringVaccination Status: VaccinatedComments: This is the 17th case of equine WNV confirmed in CA in 2023. For more information, go to: https://www.cdfa.ca.gov/ahfss/Animal_Health/WNV_Info.html; See past published Outbreak …

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