Eastern equine encephalomyelitis

Eastern equine encephalomyelitis (synonym: eastern equine encephalitis) is a viral disease of horses that affects the central nervous system. The causative agent is a virus from the Togaviridae family.

The disease is characterized by fever, depression, incoordination and paralysis. The incubation period is 1-3 weeks. The mortality rate can reach 90%. Eastern equine encephalomyelitis is common in North and South America. The virus is transmitted by mosquitoes.

Diagnosis is based on clinical signs and laboratory confirmation (detection of antibodies, virus isolation). Treatment is symptomatic. Vaccination helps prevent disease. Vector control is also important for prevention.

Thus, eastern equine encephalomyelitis is a dangerous viral disease of horses that requires preventive and anti-epidemic measures.

Equine encephalomyositis (encephalitis) or leiomyos aloha is an acute or chronic inflammatory disease of the equine brain. It can often be combined with myositis and polyradiculoneuritis.

The main etiological agent of the disease is equine oriental disease, the causative agent of which belongs to the herpes group of viruses.

The disease occurs due to infection. In horses, the disease begins acutely or subacutely. Infection occurs as a result of direct transmission of the pathogen from a sick or dead horse. Infection by airborne droplets or through the bites of blood-sucking insects is also possible. The reservoir of infection is sick horses, as well as rodents, domestic cats, pigs, goats and other animals. Infected representatives of Mammals (rodents), aphids serve as carriers of the disease. It is generally accepted that the mammary glands of their “hosts” are the main organ of entry of the virus into humans. In some forms of encephalitis, damage to the eyes and skin may occur, but more often the horse remains a carrier of the virus and does not show any signs of illness.