Article
Temporal trends in the population structure of Bordetella pertussis during 1949-1996 in a highly vaccinated population.
The Journal of infectious diseases - 1 Apr 1999
van Loo I H, van der Heide H G, Nagelkerke N J, Verhoef J, Mooi F R
Abstract excerpt
The population structure of Bordetella pertussis in The Netherlands in 5 successive periods, encompassing 1949-1996, was analyzed by DNA typing ("fingerprinting"). In 10 years following the introduction of wide-scale vaccination in 1953, a decrease in genotypic diversity (GD) was observed, suggesting clonal expansion of strains that were adapted to vaccine-induced immunity. In subsequent periods, GD increased to...
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