Seasonal rise in meningococcal disease: chief medical officer writes to all doctors.
D000293:Adolescent; D000328:Adult; D016542:Chief Executive Officers, Hospital; D002648:Child; D002675:Child, Preschool; D018563:Disease Notification / Q000706:statistics & numerical data*; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D004739:England / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008589:Meningococcal Infections / Q000453:epidemiology*; D012621:Seasons