The stability of the protective antigen and histamine-sensitizing factor of Bordetella pertussis to acid and alkali.
D000818:Animals; D000941:Antigens / Q000032:analysis*; D001681:Biological Assay; D001886:Bordetella pertussis / Q000276:immunology*; D006863:Hydrogen-Ion Concentration; D051379:Mice; D010567:Pertussis Vaccine; D013696:Temperature; D014465:Ultrasonics
D000941:Antigens; D010567:Pertussis Vaccine