Pertussis surveillance, 1979-1981.
D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010567:Pertussis Vaccine / Q000009:adverse effects*; D011014:Pneumonia / Q000209:etiology; D014481:United States; D014917:Whooping Cough / Q000150:complications / Q000453:epidemiology*
D010567:Pertussis Vaccine