Viral meningitis

Clinical criteria
Any person with an acute illness with meningeal symptoms AND fever

Laboratory criteria for a confirmed case
Raised cerebrospinal fluid white cell count AND one of the following three:
- Isolation of a viral pathogen from cerebrospinal fluid
- Detection of viral nucleic acid in cerebrospinal fluid
- Serological evidence of infection with a virus known to cause viral meningitis

Laboratory criteria for a probable case
Raised cerebrospinal fluid white cell count AND isolation of a viral pathogen known to cause viral meningitis from a site other then cerebrospinal fluid

Epidemiological criteria
NA

Case classification
A. Possible case
NA
B. Probable case
Any person meeting the clinical criteria and the laboratory criteria for a probable case but with no evidence of bacterial, fungal or parasitic meningitis
C. Confirmed case
Any person meeting the clinical and the laboratory criteria for case confirmation

Note:
Notification of viral meningitis due to a listed pathogen should be notified under the relevant disease 

Current as of: 22 January 2019