Third Case of Deadly EEE in NC Reported An 11 year old Quarter horse gelding from New Hanover County has become the 3rd
EEE positive case in NC for 2014. The horse developed clinical signs
on Tuesday, 8/5/14 and was euthanized that night. There was no history
of vaccination. The
previous two cases reported were in Carteret and Bladen county,
respectively, with neither horse having a history of vaccination. EEE causes inflammation or swelling of the brain and spinal cord and is usually fatal. Symptoms include impaired vision, aimless wandering, head pressing, circling, inability to swallow, irregular staggering gait, paralysis, convulsions and death. Once a horse has been bitten by an infected mosquito, it may take three to 10 days for signs of the disease to appear. Equine owners should discuss with their veterinarians an effective vaccination protocol to protect horses from EEE and another mosquito-borne disease, West Nile virus. The vaccinations initially require two shots, 30 days apart, for horses, mules and donkeys that have no prior vaccination history. A booster shot is recommended every six months. Mosquitoes can breed in
any puddle that lasts for more than four days, so removing any source
of standing water can reduce the chance of exposing animals to WNV or
EEE. Keeping horses in stalls at night, using insect screens and fans
and turning off lights after dusk can also help reduce exposure to
mosquitoes. Insect repellants can be effective if used according to
manufacturers' instructions. People, horses and birds can become infected from a bite
by a mosquito carrying the diseases, but there is no evidence that
horses can transmit the viruses to other horses, birds or people
through direct contact.
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