title: Correlation between optical density and viable germ count during cultivation of B. pertussis.
mesh_terms: D001431:Bacteriological Techniques; D001886:Bordetella pertussis / Q000254:growth & development*; D003470:Culture Media; D003720:Densitometry; D005612:Freeze Drying; D010567:Pertussis Vaccine / Q000592:standards
chemical_list: D003470:Culture Media; D010567:Pertussis Vaccine