The Arabian, Thoroughbred, and every other horse breed can contract the dreaded Equine Herpesvirus (EHV). In an unsettling, yet crucial update for horse owners, two horses in Wisconsin have recently tested positive for this highly infectious disease. This article delves into what you need to know about EHV — from its symptoms to prevention strategies.

Unraveling the Wisconsin Outbreak

In a recent report, two horses from a boarding facility in Sauk County, Wisconsin, were confirmed EHV positive. The affected horses include a 19-year-old Thoroughbred gelding and a 22-year-old Arabian gelding. Unfortunately, the Thoroughbred’s condition escalated to severe symptoms such as dribbling urine and inability to rise and led to euthanasia. The Arabian horse, after showing clinical signs of lethargy and decreased appetite, is currently under medical supervision. An additional 15 horses in the facility are exposed and have been quarantined to restrict the virus's potential spread.

Understanding Equine Herpesvirus (EHV)

EHV is a highly contagious disease among horses that can cause varying ailments. Equine Rhinopneumonitis, a respiratory disease most common among young horses, and Equine Herpes Myeloencephalopathy (EHM) which affects the nervous system are common forms of the illness. Broodmares may have no symptoms before experiencing an abortion, usually late in gestation, around the eighth month.

Without any evident symptoms in many horses, aside from fever, the virus can go unnoticed. Other apparent signs may include cough, loss of appetite, depression, and nasal discharge. However, EHM comes with more severe symptoms, including incoordination, paralysis of limbs, urine retention, loss of tail tone, and the horse's inability to rise.

Preventing EHV Transmission

The virus’s easy spread can occur through nose-to-nose, or close contact with an infectious horse, shared contaminated equipment, or even human transmission via clothing or hands. Hence, routine biosecurity measures, basic cleaning, and disinfection practices are crucial for preventing disease spread.

While current EHV-1 vaccines can potentially reduce viral shedding, they are unfortunately not protective against EHM. This emphasizes the importance of consistent biosecurity practices to minimize viral spread as the most effective method for disease prevention.

Final Thoughts

Dealing with illnesses in horses can be a challenging ordeal. By understanding potential health risks such as the EHV and underlining preventive measures, you can protect your horse's health. An informed horse owner is the best guardian a horse can have in the face of medical uncertainties. Be sure to stay aware of the latest health updates in your local equine community.

Source: Press Release, Wisconsin Department of Agriculture, Equine Disease Communication Center (EDCC).