Pertussis in Sydney: an indicator of the problem facing health educators.
D000293:Adolescent; D001315:Australia; D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control; D006266:Health Education; D006801:Humans; D010567:Pertussis Vaccine; D014611:Vaccination; D014917:Whooping Cough / Q000453:epidemiology*
D010567:Pertussis Vaccine