Prevalence and Sequence Variants of IS 481 in Bordetella bronchiseptica : Implications for IS 481 -Based Detection of Bordetella pertussis

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Abstract
We report the prevalence in Bordetella bronchiseptica of IS481, a frequent target for diagnosis of Bordetella pertussis, as approximately 5%. However, PCR amplicons of the predicted size were detectable in 78% of IS481-negative strains. Our results suggest that PCR targeting IS481 may not be sufficiently specific for reliable identification of B. pertussis.

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