Quebec Mare Positive for EHV

The horse lives in Laurentides and is recovering.
A Quarter Horse mare in Laurentides, Quebec, was confirmed positive for neurologic equine herpesvirus (EHV) and is now recovering.
A Quarter Horse mare in Laurentides, Quebec, was confirmed positive for neurologic equine herpesvirus (EHV) and is now recovering. | Wikimedia Commons

On January 4, a 15-year-old Quarter Horse mare in Laurentides, Quebec, was confirmed positive for neurologic equine herpesvirus (EHV). The mare developed clinical signs on December 29, including proprioceptive ataxia, difficulty rising, altered mental state, and abnormality of cranial nerves. She is now improving. 

EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. The EDCC is an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.

EHV 101

Herpesvirus is highly contagious among horses and can cause a variety of ailments in equids, including rhinopneumonitis (a respiratory disease usually found in young horses), abortion in broodmares, and EHM.

In many horses, the first or only sign of EHV-1 infection is fever, which can go undetected. In addition to fever, other common signs of EHV-1 infection in young horses include cough, decreased appetite, depression, and a nasal discharge. Pregnant mares typically show no signs of infection before they abort, and abortions usually occur late in gestation (around eight months) but can be earlier. Abortions can occur anywhere from two weeks to several months following infection with EHV-1.

Horses with EHM usually have a fever at the onset of the disease and might show signs of a respiratory infection. A few days later, neurologic signs such as ataxia (incoordination), weakness or paralysis of the fore- and hind limbs, urine retention and dribbling, loss of tail tone, and recumbency (inability to rise) develop.

Herpesvirus is easily spread by nose-to-nose or close contact with an infectious horse; sharing contaminated equipment including bits, buckets, and towels; or clothing, hands, or equipment of people who have recently had contact with an infectious horse. Routine biosecurity measures, including hygiene and basic cleaning and disinfection practices, should be in place at all times to help prevent disease spread.

Current EHV-1 vaccines might reduce viral shedding but are not protective against the neurologic form of the disease. Implementing routine biosecurity practices is the best way to minimize viral spread, and the best method of disease control is disease prevention.

Brought to you by Boehringer Ingelheim, The Art of the Horse
SHARE THIS STORY
CATEGORIES
TAGS
RELATED ARTICLES
horse nose
Florida Mare Positive for Strangles
Horse with flies around the eye in summer
Florida Horse Positive for EEE
White horse nose detail
Washington Horse Positive for Strangles
horse in stable
Third Florida Horse Tests Positive for CEM
EDCC HEALTH ALERTS
Don’t miss an important EDCC Health Alert! Get alerts delivered straight to your inbox by signing up for Practical Horseman’s newsletter.

"*" indicates required fields

Name*
Country*

Additional Offers

Additional Offers
This field is for validation purposes and should be left unchanged.