Echovirus type 4 infections.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004457:Echovirus Infections / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008581:Meningitis / Q000453:epidemiology; D012606:Scotland