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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.


Date Disease Location Status
June 22, 2017 Strangles Island County, WA Investigation Initiated
Source: Washington State Department of Agriculture

One horse in Island County, Washington has been diagnosed with Strangles. The horse was recently moved from a training facility in Southern California to an Island County facility where it presented with an enlarged, abscessed, cervical lymph node. The affected lymph node was cultured and testing returned positive for Strangles. One other horse which had been travelling with the index case has been cultured with results pending. The owner has been instructed how to practice biosecurity.

June 16, 2017 Equine Infectious Anemia Bever County, Alberta, AB Investigation Initiated
Source: Canadian Food Inspection Agency

On June 9, 2017 a positive Equine Infectious Anemia (EIA) result was confirmed by the Canadian Food Inspection Agency’s national reference laboratory for a horse that had been sampled by an accredited veterinarian on an Alberta premises in Beaver County. The horse was exhibiting clinical signs that were compatible with EIA and it died shortly after being sampled. A CFIA investigation is currently underway on the index premises and work is being done to identify other potential contacts as per current policy.

June 14, 2017 Equine Infectious Anemia St. Clements, MB Ongoing Investigation
Source: Canadian Food Inspection Agency

On June 9, 2017 a positive EIA result was confirmed by the Canadian Food Inspection Ageny’s national reference laboratory for a horse that had been sampled by an accredited veterinarian on a Manitoba (MB) premises in the rural municipality of St. Clements. The mare was being moved to a breeding farm in Saskatchewan and although a biosecurity plan was in place at the receiving premises, the horse was transported before its final EIA results had been reported. There was contact with the horses at the receiving premises and they will be included in the CFIA’s investigation, in addition to those that were on the initial MB premises. Clinical signs have not been reported.

 

June 14, 2017 West Nile Virus Bourbon County, KY Confirmed Case(s): No Quarantine
Source: http://www.kyagr.com/statevet/

The Kentucky Department of Agriculture confirmed a diagnosis of West Nile Virus in Bourbon County.  On 6/7/2017 a one year old Thoroughbred filly presented recumbent, with muscle fasiculations and seizures. The filly is current on WNV vaccination with an initial vaccination in 2016 and a booster administered on 6/1/2017. The filly is continuing to show daily improvement. The KY Department of Agriculture's equine West Nile web page at www.kyagr.com/statevet/equine-infectious-diseases.html#west has been updated to reflect this first case of 2017. 

June 07, 2017 Equine Herpes Viruses Bucks County, PA Confirmed case(s): Quarantine
Source: Pennsylvania Department of Agriculture

The Pennsylvania Department of Agriculture confirmed a case of Equine Herpesvirus Myeloencephalopathy (EHM) by RRT-PCR testing (wild-type virus).  The horse resided at a very small private barn in Bucks County, Pennsylvania.  Although the investigation is ongoing, it appears there are very few horses with known or potential exposures to this horse.  Quarantine of exposed or potentially exposed horses with monitoring of temperatures and clinical status has been implemented and will continue for a minimum of 21 days. For more info go to:  http://www.agriculture.pa.gov/Pages/default.aspx and  https://aaep.org/sites/default/files/Documents/DiseaseFactsheetEHM.pdf

 

June 01, 2017 Strangles Lake County, FL Confirmed case(s): Quarantine
Source: Florida Department of Agriculture and Consumer Services

On June 1, one premise in Lake County, Florida was placed under quarantine for clinical signs and positive PCR confirmation of strangles.  The index case became clinical around May 25.  None of the five horses on the premises have left the premises since clinical signs began. This the second case for Lake County and case 23 for Florida in 2017.

May 26, 2017 Strangles Osceola County, FL Confirmed case(s): Quarantine
Source: Florida Department of Agriculture and Consumer Services

On May 26, one premise in Osceola County, Florida was placed under quarantine for clinical signs of strangles.  The index case became clinical around May 20.  None of the six horses on the premises have left the premises since clinical signs began. This the first case for Osceola County and case 22 for Florida in 2017.

 

May 26, 2017 Strangles Boise, ID Outbreak Update
Source: Bureau of Land Management

On May 24, 2017, the Bureau of Land Management announced the temporary suspension of wild horse and burro adoptions at the Boise BLM Wild Horse Corrals due to the presence of strangles (equine distemper) in several horses. Horses showing sickness were first observed on May 17. Laboratory testing confirmed the presence of Streptococcus equi equi in one horse, with six others being symptomatic. There are currently 133 animals in the facility. Affected animals are being treated by a veterinarian and showing signs of improvement. BLM has temporarily closed the corrals to adoptions and public visitors as a precaution to prevent the spread of the disease. For more information or to adopt a wild horse or burro the public may contact the BLM Boise District Office at (208) 384-3300 to provide their contact information. They will be contacted to schedule an appointment after the corrals reopen for adoptions.

 

May 23, 2017 Equine Infectious Anemia Weld County, CO Outbreak Update
Source: State Veterinarian's Office, Colorado

This is a summary and clarification of horses recently diagnosed with EIA in Colorado. On May 2, 2017, 9 of 18 horses at a Weld County premises were tested for EIA and Piroplasmosis for entry into sanctioned racetracks. One horse tested positive for EIA and was euthanized and subsequently an additional nine cohort horses were tested. Two of  these additional 9 horse tested positive for EIA and were euthanized. The remaining 15 horses were quarantined at that barn for sixty days when they will be retested for EIA and Piroplasmosis.  On May 12, 2017 nine more horses at a second premises in Weld County, that were epidemiologically linked to the original three positive EIA horses on the first premises, were tested.  An additional three horses on the second premises tested positive for EIA and were euthanized. The remaining six horses on the second premises were quarantined for 60 days when they will be retested for EIA. Currently there are 15 horses quarantined at the initial premises and 6 horses at the second premises pending retesting for EIA.

May 22, 2017 Strangles Lake County, FL Confirmed case(s): Quarantine
Source: Florida Department of Agriculture and Consumer Services

On May 20, 2017 one premise in Lake County, Florida was placed under quarantine for clinical signs and positive PCR for strangles.  The index case became clinical on May 18, approximately three weeks after arriving from Bastrop, LA.  No horses have left the premises since clinical signs began and the horse was properly isolated upon arrival. This the first case for Lake County and case 21 for Florida in 2017.  To date in 2017, 16 of the 21 strangles cases have direct epidemiological links to the horses sold at the Bastrop, Louisiana facility and the individuals that distribute them throughout the country.