what organisms are affected by west nile virus
What is West Nile virus (WNV)? West Nile is a type of virus that causes encephalitis, or inflammation of the brain. The virus has been found in Africa, western Asia, the Middle East, the Mediterranean region of Europe and recently in the United States.Mosquitoes become infected with the virus after feeding on infected wild birds and then transmit the virus through bites to people, animals and other birds.he virus has been found in Africa, western Asia, the Middle East, the Mediterranean region of Europe and recently in the United States. Mosquitoes become infected with the virus after feeding on infected wild birds and then transmit the virus through bites to people, animals and other birds.