Syndromes include WNF, West Nile meningitis, West Nile encephalitis and WNP. ‡ Overall, WNND represents 1% of human WNV infections. § WNP may occur in the context of any other manifestation of ...

Of those with symptoms, less than one percent will develop a severe form of the disease — called West Nile neuroinvasive disease (WNND) — which can be deadly. In this, the virus infects the ...