West Nile fever is found in the region of the Earth surrounding the equator.
=== West Nile virus ===Medical testing can confirm the presence of West Nile fever or a West Nile-related illness, such as meningitis or encephalitis
West Nile poliomyelitis (WNP), an acute flaccid paralysis syndrome associated with WNV infection, is less common than WNM or WNE

