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.



Vesicular Stomatitis
Los Angeles County, Orange County, San Bernardino County, Riverside County, San Diego County, CA
Outbreak Identifier: 5645
Alert ID: 3060
June 09, 2023
Confirmed Case(s) - Official Quarantine

USDA

VSV Situation Report 6/9/2023

Since the last situation report (6/6/2023), there have been 15 new VSV-affected premises identified (4 confirmed positive, 11 suspect) in California with five counties currently affected:  Los Angeles, Orange, Riverside, San Bernardino, and San Diego Counties.  To date, all confirmed cases have been vesicular stomatitis New Jersey virus (VSNJV) serotype. Updates are as follows:  

California

  • Los Angeles County (New Infected County) – 1 confirmed positive equine premises
  • Riverside County – 6 new suspect equine premises
  • San Bernardino County – 1 new confirmed positive equine premises
  • San Diego County – 2 new confirmed positive premises (1 equine, 1 wildlife park) and 5 new suspect equine premises
  • Since the last situation report (6/6/2023), the following previously confirmed positive or suspect premises have been released from quarantine: 1 equine premises in Riverside County and 4 equine premises in San Diego County.

  

Since the start of the outbreak, 77 VSV-affected premises have been identified (29 confirmed positive, 48 suspect) in 1 state, California.  Seventy-five (75) of these premises have had only equine species clinically affected in 5 counties (Los Angeles, Orange, Riverside, San Bernardino, and San Diego Counties), one (1) premises has had clinically affected cattle (San Diego County), and one (1) premises has had clinically affected rhinoceros (San Diego County). 

Of the 77 VSV-affected premises, 10 premises have completed the quarantine period with no new clinical cases and have been released from quarantine.  Sixty-seven (67) premises remain quarantined.  

Additional information and maps of the affected area are contained in the attached situation report.  The situation report is posted publicly on the APHIS website and is accessible at the following link:  https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/equine/vsv/vesicular-stomatitis https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/equine/vsv/vesicular-stomatitis;

Strangles
Jackson County, MI
Outbreak Identifier: 5644
Alert ID: 3059
June 08, 2023
Confirmed Case(s) - Voluntary Quarantine

Michigan Department of Agriculture and Rural Development

Number Confirmed: 1
Number Suspected: Unknown
Number Exposed: Unknown 
Age: 26; Gender: Gelding; Breed: Friesian; Onset of Clinical Signs: 4/24/2023
Clinical Signs: Draining abscess under jaw; Confirmation Date: 5/1/2023; Horse Status: Recovering; Vaccination Status: Unvaccinated.

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

 

Strangles
Monroe County, MI
Outbreak Identifier: 5643
Alert ID: 3058
June 07, 2023
Confirmed Case(s) - Voluntary Quarantine

Michigan Department of Agriculture and Rural Development

Number Confirmed: 1; 
Number Exposed: 1; 
Age: 8; Gender: Gelding; Breed: Standardbred; 
Clinical Signs: mild nasal discharge; Confirmation Date: 6/2/2023; Horse Status: Affected And Alive; Vaccination Status: Status Unknown

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

 

Vesicular Stomatitis
Orange County, San Bernardino County, Riverside County, San Diego County, CA
Outbreak Identifier: 5642
Alert ID: 3057
June 06, 2023
Confirmed Case(s) - Official Quarantine

USDA

VSV Situation Report 6/6/2023

Since the last situation report (6/2/2023), there have been 18 new VSV-affected premises identified (11 confirmed positive, 7 suspect) in four counties (Orange, Riverside, San Bernardino, and San Diego Counties) in California.  To date, all confirmed cases have been vesicular stomatitis New Jersey virus (VSNJV) serotype. Updates are as follows:  

California

  • Orange County (New Infected County) – 1 confirmed positive equine premises
  • Riverside County – 1 new confirmed positive and 3 new suspect equine premises
  • San Bernardino County – 1 new confirmed positive and 1 new suspect equine premises
  • San Diego County – 8 new confirmed positive and 3 new suspect equine premises
  • Since the last situation report (6/2/2023), the following premises have been released from quarantine: 1 bovine premises in San Diego County.

Since the start of the outbreak, 62 VSV-affected premises have been identified (25 confirmed positive, 37 suspect) in 1 state, California.  Sixty-one (61) of these premises have had only equine species clinically affected in 4 counties (Orange, Riverside, San Bernardino, and San Diego Counties) and one (1) premises has had clinically affected cattle (San Diego County). 

Additional information and maps of the affected area are contained in the attached situation report.  The situation report is posted publicly on the APHIS and accessible at the following link:  https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/equine/vsv/vesicular-stomatitis

Equine Herpesvirus- Neurologic
San Luis Obispo County, CA
Outbreak Identifier: 5641
Alert ID: 3056
June 06, 2023
Quarantine Released

California Department of Food and Agriculture

Number Confirmed: 1; 
Number Exposed: 42; 
Comments: The positive horse has had two (2) consecutive negative tests seven (7) days apart. No additional cases were confirmed during the quarantine monitoring period. The quarantine has been released.;

Equine Influenza
Snohomish County, WA
Outbreak Identifier: 5640
Alert ID: 3055
June 06, 2023
Confirmed Case(s) - Voluntary Quarantine

State Veterinarian Office.

Number Confirmed: 3; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Facility Type: Boarding Facility; 
Comments: Horses have traveled to event(s) where it was noted that many were coughing. Brought home and developed symptoms. Tested 3. Owner placed voluntary quarantine and horses are recovered. They were under the care of a veterinarian.

Equine Influenza
Région de Trois-Rivières, QC
Outbreak Identifier: 5639
Alert ID: 3054
June 04, 2023
Suspected Case - Voluntary Quarantine

Attending Veterinarian & State Veterinarian

Number Suspected: Unknown 
Number Exposed: Unknown
Facility Type: Stable
Comments: A stable in Region de Région de Trois-Rivières, Quebec were exposed to Equine Influenza following a racing event.  All 6 (six) recently reported Equine Influenza affected stables in Quebec are epidemiologically linked to 2 racing events. For more information about Equine Influenza, go to: https://www.equinediseasecc.org/equine-influenza

Equine Influenza
MRC Pierre-de-Saurel, QC
Outbreak Identifier: 5638
Alert ID: 3053
June 04, 2023
Suspected Case - Voluntary Quarantine

Attending Veterinarian & State Veterinarian

Number Suspected: Unknown
Number Exposed: 24 
Facility Type: Stable
Comments: A stable in MRC Pierre-de-Saurel in Quebec with Standardbred racing horses and Quarter Horse pleasure riding horses were exposed to Equine Influenza following a racing event.  All 6 (six) recently reported Equine Influenza affected stables in Quebec are epidemiologically linked to 2 racing events. For more information about Equine Influenza, go to: https://www.equinediseasecc.org/equine-influenza

 

 

Equine Influenza
MRC Les Maskoutains, QC
Outbreak Identifier: 5637
Alert ID: 3052
June 04, 2023
Confirmed Case(s) - Voluntary Quarantine

Attending Veterinarian & State Veterinarian

Number Confirmed:
Number Suspected:
Number Exposed: 3
Facility Type: Stable; 
Age: Suckling Foal; Gender: Colt; Breed: Standardbred; Usage: Racing; Onset of Clinical Signs: 5/28/2023
Clinical Signs: pneumonia; Horse Status: Quarantined; Vaccination Status: Unvaccinated
Gender: Mare; Breed: Standardbred; Usage: Racing
Clinical Signs: Fever foal’s mother; Horse Status: Quarantined 
Comments: One (1) horse was confirmed positive for Equine Influenza, and seven (7) additional horses suspected following a racing event.  All 6 (six) recently reported Equine Influenza affected stables in Quebec are epidemiologically linked to 2 racing events. For more information about Equine Influenza, go to: https://www.equinediseasecc.org/equine-influenza

Equine Influenza
MRC Joliette, QC
Outbreak Identifier: 5636
Alert ID: 3051
June 04, 2023
Suspected Case - Voluntary Quarantine

Attending Veterinarian & State Veterinarian

Number Suspected: Unknown
Number Exposed: 12
Facility Type: Stable
Comments: Twelve (12) horses at a stable in MRC Joliette, Quebec were exposed to Equine Influenza following a racing event. All 6 (six) recently reported Equine Influenza affected stables in Quebec are epidemiologically linked to 2 racing events. For more information about Equine Influenza, go to: https://www.equinediseasecc.org/equine-influenza