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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.


September 17, 2018
West Nile Virus
Amador County, CA
Suspected Case(s): No Quarantine
Source: California Department of Food and Agriculture

On September 17, 2018, the California Department of Food and Agriculture confirmed its 8th equine WNV case for 2018. An unvaccinated 17 year old Quarter Horse gelding in Amador County, displaying neurologic signs was confirmed positive for West Nile Virus. The gelding is alive and recovering. For more information visit https://www.cdfa.ca.gov/ahfss/animal_health/WNV_Info.html

September 17, 2018
Equine Infectious Anemia
Laramie, Albany, Sweetwater, Lincoln, Teton, Park, Fremont, and Natrona Counties, WY
Information Only
Source: Wyoming Livestock Board

The Wyoming Livestock Board has quarantined an additional 5 premises (for a total of 12 premises), which include 58 horses as a result exposure to a horse originating in Colorado that was positive to Equine Infectious Anemia. The quarantined horses are located in Laramie, Albany, Sweetwater, Lincoln, Teton, Park, Fremont, and Natrona Counties. There are NO cases of EIA in Wyoming at this time. Regardless of good intentions and reported misleading advice by the seller, the majority these horses exposed at the Colorado facility were imported illegally to Wyoming. It is important that all horse and other livestock owners are aware that the Wyoming Livestock Board (and all other states) have import requirements for animals entering the state. There are also federal requirement for animals traveling interstate. For horses entering Wyoming, a negative Coggins test within 12 months and a health certificate with the origin and destination noted issued by an accredited veterinarian within thirty days is required. To find out what health requirements must be met when shipping livestock interstate: ALL state requirements are provided at www.interstatelivestock.com. For brand requirements, the state Brand agency should be contacted directly. In Wyoming brand inspections are required at change of ownership and to move all horses, sheep and cattle from county to county and when leaving the state. More information can be obtained by calling 307-777-7515. Additional information about Equine Infectious Anemia is available at the EDCC website (http://www.equinediseasecc.org ) by clicking on “Disease Information” in the menu bar.

September 17, 2018
West Nile Virus
Larimer, Adams, and El Paso Counties, CO
Confirmed Case(s): No Quarantine
Source: Colorado State Veterinarian’s Office

The Colorado State Veterinarian’s Office has confirmed three cases of equine West Nile virus. One case in Larimer County had an onset of clinical signs on August 15th, 2018. A case in Adams county showed an onset of clinical signs on August 31st. A case in El Paso county showed an onset of clinical signs on September 13th.

September 17, 2018
West Nile Virus
York County, ME
Confirmed Case(s): No Quarantine
Source: Maine Department of Agriculture, Conservation and Forestry

The  Maine Department of Agriculture, Conservation and Forestry confirmed West Nile Virus in York County. An 11-year old horse had acute neurological signs on September 4th, 2018. WNV was diagnosed using an ELIZA test at the Cornell Univerity Animal Health Diagnostic Center. The unvaccinated horse is alive and receiving treatment. For more information go to: https://content.govdelivery.com/accounts/MEDACF/bulletins/20d5376

 

September 16, 2018
Eastern Equine Encephalitis
Ocean County, NJ
Confirmed Case(s): No Quarantine
Source: New Jersey Department of Agriculture

The New Jersey Department of Agriculture confirmed Easten Equine Encephalitis (EEE) in Ocean County. The unvaccinated horse was euthanized on September 4th, 2018. This is the fourth case of EEE in New Jersey in 2018.

September 16, 2018
West Nile Virus
Burlington County, NJ
Confirmed Case(s): No Quarantine
Source: New Jersey Department of Agriculture

The New Jersey Department of Agriculture confirmed West Nile Virus in a 10-year old mare in  Burlington County. The unvaccinated mare is undergoing treatment and is the first reported case of WNV in New Jersey in 2018.  

September 14, 2018
Eastern Equine Encephalitis
Regional Municipality of Niagara, ON
Confirmed Case(s): No Quarantine
Source: on

The Ontario Ministry of Agriculture, Food and Rural Affairs confirmed two cases of EEE from the Regional Municipality of Niagara on September 12th, 2018. Both horses were unvaccinated and had no travel history. One horse is recovering from depression and ataxia with supportive treatment. The other horse was euthanized following the development of sudden and severe neurological signs. The total number of EEE cases for 2018 is ten. http://www.omafra.gov.on.ca/english/livestock/horses/facts/nhd_surv2018.htm

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.