The prime goal of this article is to discuss about west nile virus. West Nile virus (WNV) is most usually transmitted to humans by mosquitoes. You can decrease your jeopardy of being infected with WNV by using insect repellent and wearing protective clothing to prevent mosquito bites. There are no medications to treat or vaccines to prevent WNV infection. Fortunately, most people infected with WNV will have no symptoms.