Pertussis protection diminishes 5 years after fifth dose of DTaP.
Jitesh
J
Patel
D022681:Diphtheria-Tetanus-acellular Pertussis Vaccines; D006801:Humans; D013997:Time Factors; D014917:Whooping Cough / Q000276:immunology* / Q000517:prevention & control
D022681:Diphtheria-Tetanus-acellular Pertussis Vaccines