title: [Case contact studies on efficacy of FHA predominant acellular pertussis vaccine].
mesh_terms: D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D010567:Pertussis Vaccine / Q000009:adverse effects / Q000627:therapeutic use*; D012008:Recurrence; D014917:Whooping Cough / Q000235:genetics / Q000517:prevention & control*
chemical_list: D010567:Pertussis Vaccine