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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.


April 10, 2018
Equine Infectious Anemia
Liberty County, TX
Confirmed case(s): Official Quarantine
Source: Texas Animal Health Commission

The Texas Animal Health Commission (TAHC) officials confirmed Equine Infectious Anemia (EIA) in one Liberty County horse The positive horse has been euthanized and the premises will remain under quarantine until requirements for release have been met. 

April 10, 2018
Equine Herpes Viruses
Union County, NJ
Quarantine Released
Source: New Jersey Department of Agriculture

The New Jersey Department of Agriculture has confirmed that the Union County premises in New Jersey has been released from quarantine and has resumed normal activities following a 21-day period with no new cases of equine herpesvirus myeloencephalopathy. Both the horse that tested positive for EHM and the horse that tested positive for the respiratory form of EHV-1 have recovered. 

April 06, 2018
Equine Herpes Viruses
King County, WA
Confirmed case(s): Official Quarantine
Source: Washington State Department of Agriculture

The Washington State Department of Agriculture has confirmed a case of Equine Herpes Virus-1 (neurotropic) in King County, Washington. The horse was moved to an isolation area on the property and the premise has been quarantined. There are two other premises that will be quarantined due to recent movement of horses from the index property to other equine facilities. Temperatures will be taken twice daily and strict equine biosecurity is in place. If an owner has a horse exhibiting neurological signs or suspects of Equine Herpes Virus, they are directed to call their veterinarian immediately. For more information go to:  https://aaep.org/sites/default/files/Documents/DiseaseFactsheetEHM.pdf.

April 03, 2018
Equine Herpes Viruses
Sheridan County, WY
Quarantine Released
Source: Wyoming Livestock Board

The Wyoming Livestock Board released the quarantine on all premises related to the second equine herpesvirus myeloencephalopathy (EHM) outbreak in Sheridan County. This includes one affected horse, 19 exposed horses and two premises. There are no other currently active cases of EHM in the state.

 

March 30, 2018
Strangles
Chippewa County, MI
Confirmed Case(s): No Quarantine
Source: Michigan Department of Agriculture and Rural Development

The Michigan Department of Agriculture and Rural Development (MDARD) has confirmed a case of strangles in a nine-year-old miniature mule gelding from Chippewa County. The unvaccinated mule developed nasal discharge, fever, and abscesses starting on March 6, 2018. The mule is recovering. Other equines at the premises were noted to have similar signs; they were not tested, but are suspected to also have strangles and are being treated. No quarantine was issued. To date for 2018, there have been two confirmed cases of strangles in Michigan.

March 27, 2018
Equine Herpes Viruses
Washtenaw County, MI
Confirmed case(s): Official Quarantine
Source: Michigan Department of Agriculture and Rural Development

The Michigan Department of Agriculture and Rural Development has confirmed the first case of equine herpesvirus myeloencephalopathy (EHM) for 2018. The five-year-old Standardbred gelding from Washtenaw County tested positive for EHV-1 after developing a sudden onset of neurologic signs: weakness, incoordination in the hind limbs and difficulty urinating. The horse is currently under veterinary care and is isolated. The stable where the horse originated from is under quarantine and is being monitored closely.

March 24, 2018
Equine Herpes Viruses
Bannock County, ID
Quarantine Released
Source: Idaho State Department of Agriculture

On March 23, 2018 the Idaho State Department of Agriculture released the Equine Herpesvirus Myeloencephalopathy quarantine of the premises located in Bannock County, Idaho

March 23, 2018
Equine Herpes Viruses
Maricopa County, AZ
Quarantine Released
Source: Arizona State Veterinarian

On March 22, 2018 the Arizona State Department of Agriculture released the Equine Herpesvirus Myeloencephalopathy quarantine of the premises located in north Maricopa County.

March 23, 2018
Equine Herpes Viruses
Fredericksburg and Powhatan County, VA
Outbreak Update
Source: Virginia Department of Agriculture and Consumer Services

On February 27, 2018, the Virginia Department of Agriculture and Consumer Services (VDACS) placed the Hazelwild Farm in Fredericksburg under quarantine for Equine Herpes Myeloencephalopathy (EHM). Utilizing separate biosecurity protocols, the farm immediately isolated a barn housing boarding horses from another barn that houses school horses. Since the quarantine began, four horses in the school barn developed fevers and tested positive for equine herpesvirus-1 (EHV-1), but no horses developed neurologic signs. None of the boarding horses tested positive for EHV-1. On March 20, 2018, VDACS released the boarder barn from quarantine. The barn housing school horses will remain under quarantine for 21 days after the last clinical case. A second unrelated farm in Powhatan was also placed under quarantine for EHM on February 27. The remaining horses showed no further signs of illness and that farm was released from quarantine on March 21.

March 21, 2018
Equine Herpes Viruses
Union County, NJ
Outbreak Update
Source: New Jersey Department of Agriculture

A Union County property quarantined by the New Jersey Department of Agriculture last week after a horse developed the highly infectious equine herpes myeloencephalopathy (EHM) has had a second horse test positive for the respiratory form of equine herpes. The second horse had an elevated temperature and was showing respiratory signs, but no neurological signs were noted by the attending veterinarian. The second horse has been moved into the isolation barn on the property and the entire property remains under quarantine. Temperatures continue to be taken twice daily on all horses on the property. No horses have moved onto or off the property in approximately a month, therefore exposure to horses outside the area is considered unlikely. The first horse was moved into the isolation barn on the property last week and the property was placed under quarantine. The finding of another positive horse has reset the quarantine clock and will delay the release date another three days. These are the first reported EHV-1 cases in New Jersey in 2018.