West Nile Virus

What is West Nile Virus (WNV?)

  • WNV is an arbovirus that is transmitted to animals and human (host) through the bite of an infected mosquito (vector).
  • Mosquitos are infected with the virus by feeding on the natural host (resevoir) wild birds.
  • A mosquito feeding on a WNV infected animal or human (host) cannot transmit the virus to another host. Animals and humans are considered an incidental host or "dead end host".
  • WNV can cause meningitis (inflammation of the brain and spinal cord). Some signs of WNV include fever and icoordination

WNV Transmission Cycle

Reducing exposure to mosquitos is key in prevention of WNV

  • Avoid being outside at dusk and dawn, it is the peak feeding times of mosquitos.
  • Use protective clothing.
  • Use mosquito repellant.
  • Use fans during outdoor activities and in barns.
  • Eliminate any standing water on your property to decrease breeding of mosquitos.
  • Consult your veterinarian about vaccinating your animals.

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