title: Aseptic meningitis due to echovirus 30, Japan, 1997-1998.
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D004457:Echovirus Infections / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D007564:Japan / Q000453:epidemiology; D008297:Male; D008582:Meningitis, Aseptic / Q000453:epidemiology* / Q000821:virology; D012307:Risk Factors