Abstract: The study performed as part of evaluation of immunobiological properties of Bordetella pertussis vaccine strains offered an opportunity to standardize pertussis bacterial mass based on the content of surface antigens — agglutinogens 1, 2 and 3. Certain levels of agglutinogens in seed lots were found to be capable of modifying the protective activity of pertussis vaccine. The heterogeneity of the bacterial strain population was reduced by applying selection criteria for colonies based on expression of agglutinogens. B. pertussis seed lots deri...
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Topics: 
Microbiology