AP Environmental Science
Viral: Viral Meningitis (the most common form) is caused by a group of viruses known as enteroviruses. Viruses such as herpes simplex virus, HIV, mumps, West Nile virus and others also can cause viral meningitis.
Signs and Symptoms
"WebMD - Better Information. Better Health." WebMD. WebMD, n.d. Web. 08 Dec. 2015.