West Nile virus structure, illustration West Nile virus structure, illustration. The west nile virus can cause encephalitis in humans. It is transmitted by mosquitoes., by TUMEGGYSCIENCE PHOTO LIBRARY Stock Photo - Afloimages
West Nile virus structure, illustration. The west nile virus can cause encephalitis in humans. It is transmitted by mosquitoes., by TUMEGGY/SCIENCE PHOTO LIBRARY