Pertussis immunization.
D001927:Brain Diseases / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D010567:Pertussis Vaccine / Q000009:adverse effects; D012306:Risk; D013398:Sudden Infant Death / Q000209:etiology; D014481:United States; D014917:Whooping Cough / Q000517:prevention & control*
D010567:Pertussis Vaccine