West Nile Virus

West Nile Virus (WNV) has been detected in at least 48 species of mosquitoes, over 320 species of birds, at least 2 species of reptiles, and more than 25 mammalian species, including horses and humans.Birds are the natural host and reservoir of WNV....
Experimentally, it was found that this may be possible. However, there has been no evidence to indicate transmission of WNV to cats or dogs that carry or consume infected animals has occurred naturally. Dogs and cats can get infected by the bite of a...
Under normal conditions, humans are unlikely to be infected with West Nile Virus by handling a sick or dead animal. However, there are a number of other infections that could potentially result from handling an animal. To protect yourself from exposure...
Signs of infection in wildlife, like in humans, can range from no symptoms to severe symptoms of neurologic illness. Commonly reported signs in animals include weakness, stumbling, trembling, head tremors, inability to fly/walk, and a lack of awareness...
Bird-to-human transmission of West Nile Virus is extremely rare and is only possible through contact with blood or other tissues of infected animals.The National Institute of Occupational Safety and Health (NIOSH) has detailed recommendations for ways...
West Nile Virus is most often spread to humans from the bite of an infected mosquito. However, it’s always a good idea to follow basic hygienic procedures. Birdbaths and feeders should be washed or disinfected regularly. Wash your hands with soap and...
There is a nation-wide decline in many bird species. This has been documented in annual Christmas Bird Counts, Breeding Bird Surveys, and reports from bird enthusiasts. It’s possible that West Nile Virus has been a contributing factor for some species...
Since West Nile Virus (WNV) was not detected in the Western Hemisphere until 1999, native bird populations in the U.S. were not previously exposed to the virus. It is not unusual for a new disease to cause high rates of infection or death in a population...
At this time, there is not a West Nile Virus vaccine approved for use in birds. The Centers for Disease Control and Prevention, in collaboration with several organizations and laboratories, is developing and testing vaccines for use in birds. Many zoos...
It is possible that there may have been a mutation in the virus that is causing a higher number of species to be affected this year. There is currently no evidence of significant mutation in the U.S. strain of WNV since its discovery in 1999, but many...