Meningitis: the facts.
D004739:England / Q000453:epidemiology; D015277:Hotlines; D006801:Humans; D008585:Meningitis, Meningococcal / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control; D012307:Risk Factors; D014611:Vaccination; D014852:Wales / Q000453:epidemiology