West Nile Virus (WNV) is a flavivirus (a family of viruses transmitted by mosquitoes and ticks) commonly found in Africa, West Asia, and the Middle East. It is closely related to St. Louis encephalitis virus which is also found in the United States. The virus can infect humans, horses, birds, mosquitoes, and some other mammals. The course of human infection with West Nile virus is through the bite of an infected mosquito. The mosquitoes become infected when they dine on infected birds. This article will help you prevent the spread of West Nile virus.
