Cerebrospinal fluid: presence of virus unaccompanied by pleocytosis.
D002555:Cerebrospinal Fluid / Q000166:cytology* / Q000382:microbiology; D004770:Enterovirus / Q000302:isolation & purification; D005334:Fever / Q000134:cerebrospinal fluid*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007958:Leukocyte Count; D008214:Lymphocytes; D014777:Virus Diseases / Q000134:cerebrospinal fluid*