EQUINE ENCEPHALOMYELITIS

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EQUINE ENCEPHALOMYELITIS

• AKA SLEEPING SICKNESS
• LeAnn Lynn Graber
• Advanced Vet Science
• Instructor Randall Cale
• Rugby High School
• 12-18-01

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What is Equine Encephalomyelitis??? AKA
Sleeping Sickness

• Equine Encephalomyelitis is a virus that affects
  the nervous system.
• Wild animals and birds act as reservoirs.
• Can also affect humans.

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CAUSES AND TRANSMISSION

• Transmitted by biting insects
• mosquitoes
• Or other
• hematophagous insects.

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THREE TYPES OF EQUINE SLEEPING SICKNESS

• Eastern Equine Encephalomyelitis (EEE)
• Venezuelan Equine Encephalomyelitis (VEE)
• Western Equine Encephalomyelitis (WEE)

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Eastern Equine Encephalomyelitis

• Found in western hemisphere
• Principal animals infected
• wild birds domestic fowl horses
• mules donkeys
• Means of spread to man mosquitoes

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Venezuelan Equine Encephalomyelitis

• Found in Western hemisphere
• Principal animals infected
• rodents and equis
• Means of spread to man mosquitoes

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Western Equine Encephalomyeitis

• Found in Western and central U.S.A., Canada,
  South America
• Principal animals infected
• Wild birds domestic fowl horses
• mules donkeys bats reptiles
  amphibians
• Means of spread to man mosquitoes

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Signs Symptoms

• Signs and symptoms occur about 5 days after
  infection.
• Look for signs of fever, impaired vision,
  irregular gait, wandering, reduced reflexes,
  circling, lack of coordination, yawning, grinding
  of teeth, occasional convulsions, and death.

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Treatment

• No treatment is available. But anti-inflammatory
  drugs, control of seizures and intensive nursing
  care will aid in the recovery of mild cases.
• Most effective way to treat is to quarantine the
  animal.

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Prevention

• Use highly effective vaccines before the mosquito
  season

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BibliographyAiello,Susan E. Ed.The Merck
Veterinary Manual.Whitehouse Station, N.J.
Merck and Co. Inc., 1998.