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.