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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.


July 09, 2018
Equine Herpes Viruses
Buffalo County, NE
Confirmed Case(s): Voluntary Quarantine
Source: Office of The Nebraska State Veterinarian

On Monday, July 9, 2018, the Nebraska State Veterinarian’s Office received a report of a neurologic horse that tested positive for Equine Herpes Virus-1 in Buffalo County, NE. The horse will be euthanized. The facility is currently under voluntary quarantine with appropriate biosecurity in place.

July 05, 2018
Equine Infectious Anemia
Kay County, OK
Confirmed case(s): Official Quarantine
Source: The Oklahoma Department of Agriculture
The Oklahoma Department of Agriculture (ODAFF) has confirmed the first EIA positive horse for 2018 in Oklahoma. The 16 year old QH mare located in Kay County was euthanized. The horse was recently purchased from an Alabama sale barn without a current coggins test and then sold to a rescue facility in OK. There is a quarantine in place at the Oklahoma facility.
July 04, 2018
Equine Infectious Anemia
Ponoka County, AB
Confirmed case(s): Official Quarantine
Source: Canadian Food Inspection Agency

On June 28, 2018, a positive Equine Infectious Anemia (EIA) result was confirmed by the CFIA’s national reference laboratory for a horse on a premises in Ponoka County, Alberta. The horse had been sampled by an accredited veterinarian to comply with U.S. import requirements. 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. 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.

July 03, 2018
Eastern Equine Encephalitis
Marion, Nassau, Suwanee, Putnam, Pasco, Gilchrist, Volusia, Okeechobee, and Sumter Counties, FL
Confirmed Case(s): No Quarantine
Source: Florida Department of Agriculture

The Florida Department of Agriculture has reported the following 14 confirmed cases of Eastern Equine Encephalitis (EEE) occurred in June, 2018: On June 1st, one horse in Marion County, Florida tested positive for EEE. The 10 year old Arabian mare was vaccinated 4 months prior and was euthanized on June 1st due to a poor prognosis. On June 2nd, one horse in Nassau County, Florida tested positive for EEE. The 3 year old Thoroughbred mare was vaccinated 7 months prior and was euthanized on June 2 due to a poor prognosis. On June 4th, one horse in Suwanee County, Florida tested positive for EEE. The 2 year old Trakehner mare was vaccinated 1 year prior and was euthanized on June 4th due to a poor prognosis. On June 8th, one horse in Putnam County, Florida tested positive for EEE. The 7 year old unvaccinated Paint gelding was euthanized on June 9th due to a poor prognosis. On June 10th, one horse in Pasco County, Florida tested positive for EEE. The 5 year old unvaccinated Spotted Saddle Horse mare was euthanized on June 10th due to a poor prognosis. On June 11th, one horse in Gilchrist County, Florida tested positive for EEE. The 6 year old mini mare was vaccinated 2 years prior and was euthanized on June 11th due to a poor prognosis. On June 12th, one horse in Marion County, Florida tested positive for EEE. The 5 year old unvaccinated pony mare was euthanized on June 12th due to a poor prognosis. On June 15th, one horse in Suwanee County, Florida tested positive for EEE. The 1 year old unvaccinated Thoroughbred stallion was euthanized on June 15th due to a poor prognosis. On June 16th, one horse in Volusia County, Florida tested positive for EEE. The 2 year old unvaccinated Quarter Horse mare was euthanized on June 17th due to a poor prognosis. On June 17th, one horse in Okeechobee County, Florida tested positive for EEE. The 1 year old Standardbred gelding was vaccinated 9 months prior and was euthanized on June 17th due to a poor prognosis. On June 19th, one horse in Marion County, Florida tested positive for EEE. The 2 year old Quarter Horse mare has an unknown vaccine history and was euthanized on June 19th due to a poor prognosis. On June 21st, one horse in Volusia County, Florida tested positive for EEE. The 4 year old female donkey was vaccinated 1 year prior and was euthanized on June 22nd due to a poor prognosis. On June 21st, one horse in Marion County, Florida tested positive for EEE. The 1 year old Thoroughbred stallion was vaccinated 1 month prior and was euthanized on June 23rd due to a poor prognosis. On June 22nd, one horse in Sumter County, Florida tested positive for EEE. The 9 year old unvaccinated Quarter Horse mare was euthanized on June 22nd due to a poor prognosis.

June 29, 2018
Equine Herpes Viruses
San Mateo County, CA
Confirmed case(s): Official Quarantine
Source: California Department of Food and Agriculture

The California Department of Food and Agriculture has reported a 15 year old Pony mare, originating from a San Mateo County facility, displaying neurologic signs has been confirmed positive for Equine Herpesvirus Myeloencephalopathy. An additional horse originating from the same property, a 24 year old Tennessee Walking Horse mare, displayed a fever and tested positive for Equine Herpes Virus-1. Both mares have been isolated, placed under quarantine and enhanced biosecurity is in effect. Exposed horses will be monitored for clinical signs and temperatures will be 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.

https://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html

June 29, 2018
Strangles
Clinton, St. Clair, and Washtenaw Counties, MI
Confirmed Case(s): No Quarantine
Source: Michigan Department of Agriculture and Rural Development

On Friday, June 29, 2018, the Michigan Department of Agriculture and Rural Development confirmed three new cases of strangles. Case one was a 10-year-old Quarter Horse gelding from Clinton County. Case two was an eight-year-old Quarter Horse mare from St. Clair County. Case three was a standardbred gelding from Washtenaw County. All horses developed nasal discharge and swollen glands in the neck. All horses are alive and under the care of a veterinarian. None of the horses were vaccinated against strangles. No quarantines were issued and these cases are not believed to be related to each other. This brings the total number of cases of strangles in Michigan for 2018 to eight.

June 28, 2018
Botulism
Chester Basin, NS
Confirmed Case(s): No Quarantine
Source: Attending Veterinarian

On Wednesday, June 20, 2018, an attending veterinarian confirmed an outbreak of Botulism in Chester Basin, Nova Scotia, Canada. A 12-year-old Arabian/Quarter Horse cross gelding and a 26-year-old Arabian gelding were euthanized. An 8-year-old Standardbred mare, 7-year-old and 10-year-old Zonkey jack and jenny are showing clinical signs including inability to swallow, muscle fasciculations/tremors, and increased recumbency. One horse also presented with a stiff strided gait and another with colic.  8-20 horses were exposed but no quarantine is in place as Botulism cannot be spread from horse to horse. For more information about Botulism, visit https://aaep.org/sites/default/files/Documents/Outside%20Linked%20Documents/BOTULISM_Final.pdf

June 25, 2018
Potomac Horse Fever
Davidson County, TN
Confirmed Case(s): No Quarantine
Source: Office of the Tennessee State Veterinarian

On Friday, June 22, 2018, the Office of the Tennessee State Veterinarian confirmed a case of Potomac Horse Fever in Davidson County, Tennessee. Potomac Horse Fever cannot be transmitted from horse-to-horse so there is no quarantine. The status of the horse is unknown at this time.

June 17, 2018
Strangles
Shelby County, TN
Confirmed Case(s): Voluntary Quarantine
Source: Attending Veterinarian

On May 3, 2018, the attending veterinarian confirmed Strangles in a private facility in in Shelby County, Tennessee. Four horses (8 and 9-year old geldings, 7-year old mare, and 2-year old mini gelding) had clinical signs of high fevers, draining submandibular lymph nodes, coughing and nasal drainage. All four horses are alive and under voluntary quarantine until they are confirmed negative for the disease.

June 15, 2018
Strangles
Washtenaw 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 strangles in two horses from Washtenaw County. The horses are from separate premises and there is no known link between the two cases at this time. One of the cases is a three-month-old paint colt that developed nasal discharge and swollen submandibular glands. The other case is a 29-year-old American Saddlebred stallion. The status of the horses is unknown and no quarantines were placed by the Department. This brings the total number of strangles cases confirmed in Michigan in 2018 to five.