Four Horses in New York Test Positive for EEE – The Horse

Eastern equine encephalitis (EEE) is a serious disease that affects both humans and horses. The recent cases of EEE in four horses in New York serve as a reminder of the importance of taking preventive measures to protect our equine companions from this deadly virus.

The first case was reported in Madison County, where a 20-year-old Standardbred horse developed clinical signs of EEE and had to be euthanized. This horse was unvaccinated, highlighting the importance of vaccination as a preventive measure against EEE. In Oneida County, a Quarter Horse yearling also tested positive for EEE and had to be euthanized due to the severity of the disease. This horse was under-vaccinated, underscoring the need for timely and complete vaccination protocols for all horses.

In Orange County, a 2-year-old Thoroughbred colt succumbed to EEE after developing clinical signs such as fever, head pressing, and vision issues. This horse was also unvaccinated, emphasizing the need for horse owners to prioritize vaccination as a crucial aspect of equine health care. Lastly, in St. Lawrence County, a 2-year-old Belgian filly developed clinical signs of EEE and had to be euthanized. This horse, too, was unvaccinated, underscoring the devastating consequences of neglecting vaccination protocols.

Eastern equine encephalitis is caused by the EEE virus, which is transmitted to horses through mosquito bites. Wild birds serve as natural reservoirs for the virus, and mosquitoes that feed on infected birds can transmit the virus to horses and humans. EEE has a high mortality rate in horses and humans, making it one of the most serious mosquito-borne diseases in the United States.

To protect horses from EEE, veterinarians recommend vaccinating all horses with commercially available licensed vaccines against the virus. Horses should be vaccinated at least annually, with recommendations varying in high-risk areas. It is never too late to vaccinate your horses, and doing so can significantly reduce their risk of contracting EEE.

In addition to vaccination, horse owners can take preventive measures to reduce the risk of EEE transmission. Using insect repellent, especially during peak mosquito activity hours, and mosquito-proofing homes can help prevent mosquito bites. Eliminating standing water where mosquitoes can lay eggs, such as in water troughs and buckets, can also reduce mosquito populations and lower the risk of EEE transmission.

The recent cases of EEE in four horses in New York serve as a sobering reminder of the importance of vaccination and preventive measures in protecting our equine companions from this deadly virus. By taking proactive steps to safeguard our horses against EEE, we can help ensure their health and well-being.