Symptoms of the disease in horses include fever, impaired vision, irregular gait, reduced reflexes, inability to swallow, occasional convulsions and death. The disease is most commonly detected in horses from April to August. Previously unvaccinated horses should be given two injections of vaccine about a week to 10 days apart. Previously vaccinated older horses can be protected by a single booster shot. In previously vaccinated young animals, the two-injection booster series is recommended.
Symptoms can range from fever with headache to coma.
Tips on Eliminating Mosquito Breeding Sites Clean out eaves, troughs and gutters. Remove old tires, or drill holes in those used for playground equipment to allow them to drain. Turn over or remove empty plastic pots. Pick up broken, unused or discarded toys. Pick up all beverage containers and cups.