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This study sought to determine the genotypes of circulating Bordetella pertussis, the causative agent of pertussis, in Cambodia by direct molecular typing of clinical specimens.DNA extracts from nasopharyngeal swabs obtained from 82 pertussis patients in 2008–2016 were analyzed by multilocus variable-number tandem repeat analysis (MLVA). B. pertussis virulence-associated allelic genes (ptxA, prn,...