The return of the 100-day cough: resurgence of pertussis in the 1990s.
Laboratory Centre for Disease Control Health, Canada, Ottawa, Ont.
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Bentsi-Enchill
D002170:Canada / Q000453:epidemiology; D004196:Disease Outbreaks; D006801:Humans; D014611:Vaccination; D014917:Whooping Cough / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control