West Nile Virus
*West Nile Virus ... Nile virus occurs all over the U.S. But most mosquitoes don't carry the virus. And most people who ... West Nile virus is an illness that mainly affects birds. But an infected mosquito can spread ... 89207;west nile virus;virus, west nile;west nile virus, spread;west nile virus, symptoms;west nile ... virus, diagnosis;west nile virus, treatment;west nile virus, prevention