SYMPTOMS OF WEST NILE IV
The Incubation Period In Humans (Time From Infection to
Onset of Disease Symptoms) is Usually 3 to 14 Days For
West Nile Encephalitis.
Symptoms Of West Nile Fever Will Generally Last a Few
Days, Although Even Some Healthy People Report Having
Been Sick For Several Weeks.
Symptoms of Severe Disease (Encephalitis Or Meningitis)
May Last Several Weeks, Although Neurological Effects
May Be Permanent.