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West Nile Virus in Birds
Birds are the predominant reservoir host for wesnal virus in north america alone. Other animals can get infected as well, but humans and horses are what are called dead end hosts. The incubation period for west nile fever is anywhere from two to 14 days. Less than one per cent of those people will develop neuro invasive disease or sometimes itis, called w n n d, west nile neuro invasive disease.