potency(6) Vaccine(6) Vaccines(5) Pertussis toxin(4) ELISA(3) tetanus toxoid(3) acellular pertussis(3) tetanus vaccine(3) international standard(3) Bordetella pertussis(3) Salmonella Typhi(2) acellular pertussis vaccines(2) Single immunogenicity assay.(2) Next-generation sequencing(2) immunogenicity(2) adjuvant(2) Magnetic beads(2) consistency approach(2) 3Rs(2) alternative methods(2) Combination vaccines(2) Vi polysaccharide(2) Conjugate vaccine(2) Acellular pertussis vaccine(1) Snake-antivenom(1) VAC2VAC(1) Phage lysate(1) SARS-CoV-2(1) neutralization(1) Sereny test(1)