title: Why you still need pertussis vaccination.
mesh_terms: D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000008:administration & dosage*; D015438:Health Behavior; D006304:Health Status; D006801:Humans; D008875:Middle Aged; D014917:Whooping Cough / Q000517:prevention & control*
chemical_list: D015721:Diphtheria-Tetanus-Pertussis Vaccine