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Disease Outbreak 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.


November 15, 2018
Equine Infectious Anemia
Kaufman, Tarrant, Tom Green Counties, TX
Confirmed case(s): Official Quarantine
Source: Texas Animal Health Commission

On June 13, 2018, Texas Animal Health Commission (TAHC) officials reported Equine Infectious Anemia (EIA) in two Kaufman County Quarter Horses located on the same premises. Since that time, one additional horse from the quarantined premises has been confirmed positive for EIA. In addition, TAHC officials confirmed EIA in one Tarrant County Quarter Horse and one Tom Green County Quarter Horse . The positive horses have been euthanized. The premises in Kaufman, Tarrant, and Tom Green counties will remain under quarantine until requirements for release have been met. TAHC staff is working closely with owners and veterinarians to monitor potentially exposed horses and implement biosecurity measures.

 

November 15, 2018
West Nile Virus
Johnston County, NC
Confirmed Case(s): No Quarantine
Source: North Carolina Department of Agriculture and Consumer Services

The North Carolina Department of Agriculture and Consumer Services has reported a confirmed case of equine West Nile virus. The horse resided in Johnston County. This is the fourth confirmed case of equine WNV in NC in 2018.

November 14, 2018
West Nile Virus
Logan County, KY
Confirmed Case(s): No Quarantine
Source: Office of the Kentucky State Veterinarian

The Kentucky Department of Agriculture confirmed West Nile Virus (WNV) in Logan County. On November 7, 2018 the 7-year old unvaccinated Percheron gelding had rear limb ataxia and muscle fasciculations. As of November 14th the horse is reported improved with a favorable prognosis. This 17th case of WNV in Kentucky in 2018.

November 13, 2018
Strangles
Livingston County, MI
Confirmed Case(s): No Quarantine
Source: Michigan Department of Agriculture and Rural Development

The Michigan Department of Agriculture and Rural Development has confirmed a case of strangles in a three-year-old filly pony from Livingston County. The pony developed a fever and nasal discharge on November 1st, 2018. The pony is currently receiving treatment. It is unknown if it was vaccinated against strangles. No quarantines were issued. This case bring the total number of confirmed 2018 strangles cases in Michigan to 19.

November 07, 2018
West Nile Virus
Medina and Wyandot Counties, OH
Confirmed Case(s): No Quarantine
Source: Ohio Department of Agriculture

As of November 7, 2018 the Ohio Department of Agriculture has confirmed West Nile Virus (WNV) in two horses.  a 7-year-old Jenny from Medina County. On 10/16/2018 the donkey was lame in its hind legs. A serum sample sent to National Veterinary Services Laboratory (NVSL), had an IgM capture ELISA positive at 1.400, suggesting recent exposure to West Nile Virus. The donkey was not vaccinated WNV and  is alive and recovering as of 10/26/2018. This is the forty-ninth positive WNV case in Ohio in 2018.The fiftieth positive horse was an adult Belgian mare from Wyandot County. On 10/25/2018 the owner found his horse down and unable to rise. The veterinarian observed muscle fasciculations of the face and neck as well as a temperature of 102°F. Treatment was attempted but due to the prognosis the owner elected euthanasia. The serum sample sent to Cornell University, had an IgM capture ELISA of 16.60 (>3.3=Positive), suggesting recent exposure to West Nile Virus. The horse was not vaccinated against West Nile Virus. 

November 07, 2018
West Nile Virus
Davie County, NC
Confirmed Case(s): No Quarantine
Source: North Carolina Department of Agriculture and Consumer Services

The North Carolina Department of Agriculture and Consumer Services confirmed West Nile Virus (WNV) in an unvaccinated horse in Davie County. 

November 07, 2018
Strangles
Stevens County, WA
Confirmed Case(s): Voluntary Quarantine
Source: Washington Department of Agriculture

The Washington Department of Agriculture received confirmation of Strangles in 2 horses testing positive by culture. Owner had placed in quarantine when brought to property in Stevens County and noticed nasal discharge. Animals have recovered.

November 07, 2018
Equine Herpes Viruses
San Mateo County, CA
Confirmed case(s): Official Quarantine
Source: California Department of Food and Agriculture

November 7, 2018: The California Department of Food and Agriculture confirmed Equine Herpesvirus Myeloencephalopathy (EHM) in a 24-year old Arabian mare. The mare, originating from a San Mateo County facility, was displaying neurologic signs and was vaccinated. The mare was removed from the property and placed in isolation and quarantined. CDFA is investigating to identify exposed horses which will be monitored for clinical signs and temperatures taken twice daily. Any horse displaying a fever or compatible clinical signs will be tested. CDFA will continue to monitor the situation and post new information as it becomes available.

November 07, 2018
Equine Infectious Anemia
Municipality of Bonnyville, AB
Confirmed case(s): Official Quarantine
Source: Canadian Animal Health Surveillance System

On November 2, 2018, a positive EIA result was confirmed by the CFIA’s national reference laboratory for a horse on a premises in the municipal district of Bonnyville, Alberta. The horse had been sampled by an accredited veterinarian to comply with U.S. import conditions. No clinical signs of disease were noted at the time of sampling. A CFIA investigation is underway and as per program policy, a quarantine has been placed on the infected animal and its on-premises contact animals. Initial reports indicate that there are several equines on the affected premises. The quarantine will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of positive cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current program policy. 

 

November 07, 2018
West Nile Virus
Sacramento County, CA
Confirmed Case(s): No Quarantine
Source: The California Department of Food and Agriculture

On November 2, 2018, the California Department of Food and Agriculture confirmed its 11th equine West Nile Virus case for 2018. The case was a 1 year old Grade mare in Sacramento county with unknown vaccination history, displaying neurologic signs. The mare was euthanized due to severity of clinical signs. For 2018, a total of eleven (11) horses have been confirmed positive for West Nile Virus. The positive horses were located in Amador, Kern, Merced (2), Placer, Sacramento (3), San Joaquin, Shasta and Stanislaus counties. Five (5) horses were unvaccinated, three (3) horses had an unknown vaccine history, and three (3) horses were vaccinated. Six (6) horses died or were euthanized and five (5) horses are alive. For more information on California equine WNV cases for 2018 visit https://www.cdfa.ca.gov/ahfss/Animal_Health/WNV_Info.html