ECHO virus type 9 as the agent responsible for an important outbreak of aseptic meningitis in Belgium.
D001530:Belgium; D004196:Disease Outbreaks; D004459:Echovirus 9; D006801:Humans; D008581:Meningitis / Q000453:epidemiology*; D008582:Meningitis, Aseptic; D014780:Viruses
MENINGITIS/epidemiology; VIRUSES