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West Nile Encephalomyelitis in the Horse

Filed Under: Horses, Diseases, Parasites

West Nile virus (WNV) is a flavivirus that was first identified in Africa during 1937. WNV is considered to be endemic in Africa, Asia, Southern Europe and North America. The virus first appeared in North America around the New York City area in 1999, when wild and zoo birds, horses and humans died of meningoencephalitis. WNV has been found in 225 different wild and captive bird species. Birds are the natural host and reservoir of this virus.

Heartworm Disease in the Cat

Filed Under: Cats, Parasites

Heartworms or Dirofilaria immitis are a spaghetti-type worm that will develop in the heart and lungs of an affected feline. Heartworm disease in cats was first reported in 1920’s both in Brazil and in the U.S. Domestic and exotic felines may all become infected. Heartworms affect male and female cats in equal numbers.

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