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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 31, 2018
Equine Herpesvirus
Snyder County, PA
Quarantine Released
Source: Pennsylvania Department of Agriculture, Board of Animal Health

On December 31, 2018 the Pennsylvania Department of Agriculture, Bureau of Animal Health released the quarantine for Equine Herpesvirus Myeloencephalopathy (EHM) on the premises in Synder County. No additional cases were identified.

December 26, 2018
Equine Herpesvirus
LaGrange County, IN
Confirmed case(s): Official Quarantine
Source: Indiana State Board of Animal Health

On December 19, 2018 a confirmed Equine Herpesvirus Myeloencephalopathy (EHM) in a neurologic horse in LaGrange County, Indiana. Two other, untested, horses were treated with similar signs. All three are recovering. Indiana State Board of Animal Health (BOAH) placed a quarantine on the premise 12/20/18; the 21-day protocol of twice-daily temperatures is being followed. No evidence of spread off the farm. The situation is being monitored by BOAH and private practicing veterinarians.

 

December 26, 2018
Strangles
Okaloosa County, FL
Confirmed case(s): Official Quarantine
Source: Florida Department of Agriculture and Consumer Services

The Florida Department of Agriculture and Consumer Services reported on December 21th, one premises in Okaloosa County was placed under quarantine for clinical signs and a positive culture test result of Strangles. Of the 31 horses under quarantine, 13 have shown clinical signs.

 

December 21, 2018
Strangles
Marion, Pinellas, and Palm Beach Counties, FL
Confirmed case(s): Official Quarantine
Source: Florida Department of Agriculture and Consumer Services

The Florida Department of Agriculture and Consumer Services has reported three confirmed three quarantines for Strangles. On December 20th, 2018, one premises in Marion County was placed under quarantine after one horse presented with clinical signs of Strangles with a positive PCR test result. Six of the 93 quarantined horses on the property are currently clinical for Strangles. On December 20th, 2018, one premises in Pinellas County was placed under quarantine after one horses presented with clinical signs of Strangles with a positive culture test result. Two of the 28 quarantined horses on the property are currently clinical for Strangles. On December 19th, 2018, one premises in Palm Beach County was placed under quarantine after one horses presented with clinical signs of Strangles with a positive PCR test result. One of the 29 quarantined horses on the property is currently clinical for Strangles.

 

December 20, 2018
Strangles
Providence County, RI
Confirmed case(s): Official Quarantine
Source: Rhode Island State Veterinarian

The Rhode Island State Veterinarian has reported a barn at a stable in Providence County, RI is under quarantine after confirmation of Strep equi. equi via PCR on a nasopharyngeal sample. The horse was recently imported by a New Hampshire based rescue group and was sourced at an auction in Pennsylvania. The attending veterinarian reported that the horse was being worked up for nasal discharge and possible pneumonia. The affected horse is a 2.5 year old miniature mare that was housed in an isolation barn at a boarding facility that houses about 50 horses. The affected horse was placed into the isolation barn upon arrival and has not had contact with any other horses at the farm. The farm has biosecurity protocols in place routinely for horses that go into the isolation barn, so at this time the order of quarantine only encumbers the isolation barn and the horses contained therein.

 

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 Herpesvirus
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.