Mosquito-borne Arbovirus infection causing fever, rash, pain, nausea, and, in some, severe neurological diseases including paralysis. Also see Arbovirus Infections, and Encephalitis Arbovirus.Encyclopedia Entry for West Nile Fever :West Nile Fever- West Nile virus- Flavivirus Japanese Encephalitis Antigenic ComplexEncyclopedia Entry for West Nile Fever :West Nile Fever. Source of disease: West Nile virus