Signs Of West Nile Virus. Three more groups of mosquitoes in trap pools have tested. When symptoms do occur, they can range from mild to a rapidly fatal brain infection.
Most people (about 80%) infected with wnv do not develop any symptoms. Other possible symptoms of severe west nile virus illness can include difficulty. This means mosquitoes with the virus are in the area and could spread it to humans and other animals.
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The virus can infect horses, humans, and many different species of birds. When symptoms do occur, they can range from mild to a rapidly fatal brain infection. Fever has occurred in less than one fourth of all confirmed equine cases. Some species are more resistant to wnv than others, with crows and raptors being
