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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.


December 14, 2018
Strangles
New Brunswick, Canada
Confirmed case(s): Official Quarantine
Source: Canadian Animal Health Surveillance System

A veterinarian from the Provincial Veterinary Service who practices in the western half on the province of New Brunswick was called on November 5th to see a horse off feed and swelling of the right parotid area. The horse was cultured positive for Strept. equi equi 4 days later. This horse was euthanized for other health reasons. The premise was put under quarantine on November 5th as strangles was suspected with the clinical signs. 3 other horses on the farm were exposed to the positive case. 1 horse (a pony) showed clinical signs 8 days later and was cultured positive. The 2 remaining horses on the farm were also sampled and 1 out of the 2 horses also cultured positive but both showed no clinical signs. Currently the 2 horses have not shown clinical signs and the pony has made a full recovery. The farm continues to be under quarantine and serial nasal swabs are planned before the quarantine is lifted.

December 12, 2018
Strangles
Callaway County, MO
Confirmed Case(s): Voluntary Quarantine
Source: Attending Veterinarian

An attending veterinarian has reported a case of Strangles in Callaway County, Missouri. A 4-year-old Saddlebred mare at William Woods University showed an onset of clinical signs on November 29th, 2018, including fever and enlarged submandibular lymph nodes. The index horse and three additional horses with potential exposure, including a horse that had recently arrived at the facility, were immediately isolated. A second horse, a 4-year-old Saddlebred gelding began showing an onset of clinical signs on November 30th, 2018, including elevated temperature and nasal discharge. A third horse in isolation showed an elevated temperature but no additional clinical signs. Both clinically positive horses have been confirmed positive for S. equi. William Woods University has established a self-imposed quarantine and all horses on the premises are being monitored for signs of Strangles. The affected horses are being treated and are expected to make a full recovery.

December 11, 2018
Equine Infectious Anemia
Cariboo Sub. B., BC
Confirmed case(s): Official Quarantine
Source: Canadian Food Inspection Agency

On Dec. 7, 2018, the Canadian Food Inspection Agency (CFIA) confirmed Equine Infectious Anemia (EIA) in two horses on one premises in Cariboo Sub. B., British Columbia. The horses were tested at the owner’s request as exposure to EIA was suspected. The horses had no clinical signs of disease at the time of sampling. A CFIA investigation is underway and as per program policy, a quarantine has been placed on the infected animals and their on-premises contact animals. 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. More info may be found on the CFIA website and at https://aaep.org/sites/default/files/Documents/Outside%20Linked%20Documents/DiseaseFactsheet_EIA.pdf.

December 11, 2018
West Nile Virus
Spartanburg County, SC
Confirmed Case(s): No Quarantine
Source: South Carolina State Veterinarian's Office

The South Caroline State Veterinarian’s office has received laboratory confirmation of the fifth case of West Nile Virus in SC in 2018 in Spartanburg County. It is the first case for Spartanburg County this year. The case was a 17 month old grade filly who was not vaccinated. The horse was euthanized and WNV was confirmed via PCR testing. No quarantine was established.

December 10, 2018
Equine Herpes Viruses
Snyder County, PA
Confirmed case(s): Official Quarantine
Source: Pennsylvania Department of Agriculture, Bureau of Animal Health

On December 7, 2018, the Pennsylvania Veterinary Laboratory in Harrisburg, PA confirmed Equine Herpesvirus Myeloencephalopathy in a horse with hind limb ataxia tested positive for EHV-1 (G-strain). As of 12/10/18, two horses were affected and both horses have been euthanized at this premises. The premises, a pleasure horse barn in Snyder County, Pennsylvania, has been quarantined by the Pennsylvania Department of Agriculture, Bureau of Animal Health. Eight horses remain on the premises and are being monitored for clinical signs of EHV-1 infection and biosecurity precautions have been implemented to prevent the spread of the virus off of the premises. No additional clinical signs have been noted in the remaining horses.

December 06, 2018
Equine Herpes Viruses
Snohomish County, WA
Confirmed Case(s): No Quarantine
Source: Washington State Department of Agriculture

The Washington Department of Agriculture has reported two confirmed cases of Equine Herpesvirus 4 in Snohomish County.

 

December 06, 2018
Equine Influenza
Snohomish and Skagit Counties, WA
Confirmed Case(s): No Quarantine
Source: Washington State Department of Agriculture

The Washington Department of Agriculture has reported four cases if Equine Influenza. Two cases were confirmed in Snohomish County and two in Skagit County. Reports indicate that most of the Equine Influenza cases have occurred in unvaccinated horses.

 

December 04, 2018
Equine Infectious Anemia
Fremont County, CO
Confirmed case(s): Official Quarantine
Source: Colorado Department of Agriculture

On December 4, 2018 the Colorado Department of Agriculture confirmed Equine Infectious Anemia (EIA) in a horse that was tested for routine movement. The horse is quarantined in Fremont County. This is the fourth case of EIA in Colorado this year and is unrelated to the previous three cases. For more information go to: https://www.colorado.gov/pacific/agmain/news/1242018-fourth-eia-positive-horse-identified-colorado

November 30, 2018
Equine Infectious Anemia
Athabasca County, AB
Confirmed case(s): Official Quarantine

On November 21, 2018 the Canadian Food Inspection Agency confirmed a horse with Equine Infection Anemia in Athabasca County, Alberta. No clinical signs of disease were noted at the time of sampling. A CFIA investigation is underway and as per program policy, and  a quarantine has been placed on the infected animal and its on-premises contact animals. Initial reports indicate 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.

 

November 28, 2018
Equine Influenza
Whatcom, Snohomish, and Thurston Counties, WA
Confirmed Case(s): No Quarantine
Source: Washington State Department of Agriculture

The Washington State Department of Agriculture has reported seven cases of Equine Influenza. Three cases were reported in Whatcom County, three in Snohomish County, and one case in Thurston County. No quarantines have been established at this time.