Donate to the EDCC
Sign up for Email Alerts

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.


September 14, 2018
West Nile Virus
Essex County, ON
Confirmed Case(s): No Quarantine
Source: Ontario Ministry of Agriculture, Food and Rural Affairs

The Ontario Ministry of Agriculture, Food and Rural Affairs received confirmation on September 12, 2018 that a 2 year old unvaccinated filly from Essex County tested positive for West Nile virus. She became depressed, unsteady on her feet and had a temperature of 102 F. She is gradually responding to treatment. This is the second confirmed case of WNV infection in 2018. http://www.omafra.gov.on.ca/english/livestock/horses/facts/nhd_surv2018.htm

September 14, 2018
West Nile Virus
Duchesne, Salt Lake, and Tooele Counties, UT
Confirmed Case(s): No Quarantine
Source: Utah Department of Agriculture and Food

The Utah Department of Agriculture and Food has reported three cases of equine West Nile Virus. A racing Quarter Horse gelding in Duchesne County was confirmed positive on August 24th, 2018 and was euthanized. A Quarter Horse mare in Salt Lake County developed clinical signs 7 days after being imported from Washington State to Utah for training was confirmed positive on August 28th and was euthanized. A 6-year-old Quarter Horse mare from Tooele County was confirmed positive on September 4th, was treated, and is recovering.

September 14, 2018
West Nile Virus
Wayne and Seneca Counties, OH
Confirmed Case(s): No Quarantine
Source: Ohio Department of Agriculture

The Ohio Department of Agriculture has confirmed two cases of equine West Nile virus. A 4-year-old Standardbred mare was confirmed positive in Wayne County. The veterinarian reported muscle fasciculations, clumsiness and a low-grade fever. A serum sample was collected and sent to NVSL on September 3rd, 2018 for WNV testing. It is unknown if the horse was vaccinated or not against West Nile Virus. The sample submitted to NVSL reported an IgM capture ELISA titer of 1:400 or greater, suggesting recent exposure to West Nile Virus. This is the second horse to test positive for West Nile Virus in Wayne County, Ohio. A 14-year-old Standardbred Gelding from Seneca County showed an onset of clinical signs on September 1st when the owner noticed that the horse was unwilling to move so they contacted a veterinarian. On September 4th, the veterinarian noticed that the horse was agitated, it had fasciculations of the face and ears, ataxia and was stumbling. A serum sample submitted to NVSL reported an IgM capture ELISA titer of 1:400 or greater, suggesting recent exposure to West Nile Virus. As of September 13th, the horse appeared to be recovering. This is the first horse to test positive for West Nile Virus in Seneca County, Ohio. The horse was not vaccinated against West Nile Virus.

September 14, 2018
West Nile Virus
Park, Campbell, Johnson, Goshen, and Lincoln Counties, WY
Confirmed Case(s): No Quarantine
Source: Wyoming Livestock Board

The Wyoming Livestock Board has been made aware of an additional seven confirmed cases of West Nile Virus in horses. Two in Park County, two in Campbell County, and one each in Johnson, Goshen and Lincoln Counties. Equine owners are reminded that vaccines are available to prevent West Nile Virus infections and when administered properly (including initial boosters when indicated) are highly effective. More information on West Nile Virus can be obtained by clicking the “Disease Information” link in the menu bar on the Equine Disease Communication Center website (http://www.equinediseasecc.org )

 

September 14, 2018
Equine Herpes Viruses
Simcoe County, ON
Confirmed Case(s): Voluntary Quarantine
Source: Ontario Ministry of Agriculture, Food and Rural Affairs

The Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) has been notified of a confirmed case of equine herpes myeloencephalopathy (EHM), caused by equine herpes virus 1 (EHV-1), in Simcoe County. The horse developed acute and severe neurological signs and was euthanized. Another horse that shared the paddock with the infected horse also developed neurological signs but is recovering. The farm owner has voluntarily placed the premises under a self-imposed quarantine to reduce the risk of viral spread. For more information go to:https://aaep.org/sites/default/files/Documents/DiseaseFactsheetEHM.pdf

September 14, 2018
West Nile Virus
Gratiot 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 the first case of West Nile Virus for 2018 in an unvaccinated six-year-old grade mare from Gratiot County. On September 2, 2018, the horse developed muscle twitching and was unable to raise her head. The owner elected to euthanize the horse. No quarantines were placed.

September 13, 2018
West Nile Virus
Dunn County, WI
Confirmed Case(s): No Quarantine
Source: Wisconsin Department of Agriculture, Trade, and Consumer Protection

The Wisconsin Department of Agriculture, Trade, and Consumer Protection has confirmed the second case of equine West Nile Virus for 2018. The affected horse was a 10-year-old unvaccinated Tennessee Walker gelding from Dunn County. The attending veterinarian first saw the horse on September 3rd, 2018; the horse exhibited neurologic signs and was unable to rise. The horse did not respond to treatment and was euthanized on September 4th.

September 13, 2018
West Nile Virus
Buchanan and Marshall Counties, IA
Confirmed Case(s): No Quarantine
Source: Iowa State Veterinarian

The Iowa State Veterinarian has confirmed two cases of equine West Nile Virus. A yearling Belgian filly at a private facility in Buchanan County was found by the owner down in a creek on September 2nd, 2018. The horse was recumbent and unable to right itself. The attending veterinarian examined the horse on September 3rd; the horse was unable to right itself to sternum and the owner elected to have the horse humanely euthanized. The filly was unvaccinated. A 2-year-old quarter horse filly in Marshall County showed an onset of clinical signs on September 5th. It was reported the horse had muscle fasciculations of the face and shoulder region, slight muzzle deviation to the left, mild lethargy, decreased consumption of water, and was afebrile. The horse is alive and was vaccinated. The testing for both cases was confirmed at the Iowa State University Veterinary Diagnostics Laboratory.

September 11, 2018
Eastern Equine Encephalitis
Monmouth County, NJ
Confirmed Case(s): No Quarantine
Source: New Jersey Department of Agriculture

The New Jersey Department of Agriculture confirmed Eastern Equine Encephalitis (EEE) in a 7-year-old horse in Monmouth County. The horse had not been vaccinated against EEE in 2018 and was euthanized on September 4, 2018. This is the third reported case of the mosquito-borne illness in horses, in New Jersey for 2018.

September 11, 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 another case of strangles in a horse from Washtenaw County. The horse, a 15-year-old thoroughbred gelding, was experiencing mild, intermittent nasal discharge for an unknown duration. The horse had not been vaccinated for strangles and is currently alive and under the care of a veterinarian. No quarantines were issued. Two other horses at the farm this year have been confirmed with strangles. This new case brings the total number of reported cases of strangles in Michigan in 2018 to 15.