Aseptic meningitis is an illness that appears similar to bacterial meningitis. However, bacteria do not grow in cultures of the fluid around the brain and spinal cord (cerebrospinal fluid). This may occur because there are no bacteria, or because the bacteria are difficult to grow.
Viral meningitis
Fungal meningitis
Neoplastic meningitis
Tuberculous meningitis
Herpes simplex encephalitis
Mollaret's meningitis
Japanese encephalitis
Varicella zoster encephalitis