Outbreak of aseptic meningitis due to ECHO-9 virus.
D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D029822:Enterovirus B, Human; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008581:Meningitis / Q000453:epidemiology*; D013781:Texas; D044465:White People