Parainfluenza virus type 3 has been isolated from the cerebral spinal fluid (CSF) from six individuals—four children and two adults—over a 10-year period. All had fever, and four had signs of meningitis. All recovered uneventfully, including one child undergoing chemotherapy for medulloblastoma. The clinical presentation of this child who developed parainfluenza virus type 3 meningitis is descr...