Understanding Eastern Equine Encephalitis (EEE): Prevention and Impact
Eastern Equine Encephalitis (EEE) is a severe and often fatal disease affecting both horses and humans. Recently, a 15-year-old mare in Atlantic County, New Jersey, succumbed to EEE despite being vaccinated—highlighting the persistent threat this mosquito-borne disease poses. The following article will delve into the intricacies of EEE and discuss preventive measures, the importance of continual vigilance, and research directions that can aid in combating this deadly disease.What is Eastern Equine Encephalitis?
Eastern Equine Encephalitis is caused by the EEE virus, which is transmitted by mosquito bites. Wild birds act as natural reservoirs for the virus, making them unwitting contributors to the disease's spread. Horses, unlike birds, do not generate sufficient virus levels in their blood to transmit it further. The disease manifests with worrying symptoms such as fever, ataxia, and neurological signs. Unfortunately, the mortality rate is strikingly high—in horses, it can reach up to 90%.Preventive Measures: Protecting Horses and Humans
Given its devastating impact, stringent preventive measures are required to mitigate the risk of EEE infection. Here are some key strategies endorsed by the Equine Disease Communication Center (EDCC):1. Vaccination
Annual vaccination is crucial. While it may not always be foolproof (as in the recent New Jersey case), it significantly reduces the probability of severe infection.2. Mosquito Control
Controlling mosquito populations can drastically reduce the risk of EEE transmission. Here are a few practical tips:- Use insect repellents containing DEET or picaridin.
- Fix window and door screens to prevent mosquitoes from entering stables and homes.
- Eliminate standing water, which serves as breeding grounds for mosquitoes.
- Maintain clean water troughs by draining them weekly and employing mosquito control measures like nontoxic mosquito dunks or stocking tanks with mosquito larvae-eating fish.