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Horses

  • West Nile Fever is a disease caused by a virus (WNV) carried by mosquitoes. It causes encephalitis (inflammation of the brain and spinal cord) that can affect humans and other animals as well as horses.

  • The terms ‘whistler’ and ‘roarer’ are used to describe horses that make an abnormal respiratory noise during exercise. The noise is heard during inspiration (i.e., breathing in) and may be anything from a high pitched soft whistle to a harsh ‘roar’.