West Nile Virus
This article contains a brief synopsis of the West Nile Virus as compiled on September 28, 2002.

Overview

A new horse virus had invaded our area and is causing problems similar to the eastern equine encephalitis virus. Signs of the problem are low-grade fever, slight weakness in the front or rear legs, dragging of rear toes, inability to stand and inability to swallow.

The horses that go down and are unable to rise have a high incidence of not recovering from the virus. Horses that stay on their feet and receive large doses of anti-inflammatory medications and immune stimulators usually survive and return to a normal life.

A vaccine has been developed by Fort Dodge Labs that must be given in a series of 2 injections 3-4 weeks apart then every 4 months. If this is not done, the horse is susceptible to the viral infection.

At the present, the vaccine is on a conditional release, meaning that only veterinarians can give the injection. At a later date, it may be available as other vaccines are.

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Helpful Links

Cornell University has compiled in depth information regarding West Nile Virus as well as the current status of the spread of the virus.  

The Center for Disease Control provides extensive information regarding this disease and it's effects on horses and humans.

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