Case definition
A body temperature of ≥38°C/ 100.4°F (or recent history of fever) in a previously healthy person with or without headache and vomiting. The person must also have meningeal irritation, convulsions, altered consciousness, altered sensory manifestations or paralysis (except AFP).
Special note
Any person that is a case of suspected meningitis, encephalitis or meningo-encephalitis should be counted as fever and neurological symptoms.
Source: National Surveillance Manual