Journal
JOURNAL OF INFECTIOUS DISEASES
Volume 205, Issue 8, Pages 1220-1224Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jis178
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Funding
- National Health and Medical Research Council of Australia [APP1011942]
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Australia is experiencing a prolonged epidemic of pertussis that began in 2008. A total of 194 Bordetella pertussis isolates collected from 2008 through 2010 were typed by single-nucleotide polymorphism (SNP) analysis, by multilocus variable number tandem repeats analysis, and by fim3, prn, and ptxP sequence analyses. Strains with 2 closely related SNP profiles carrying prn2 and ptxP3 from the recently emerged SNP cluster I predominated. The data suggest increasing selection among the B. pertussis population in Australia in favor of strains carrying prn2 and ptxP3 under the pressure of acellular vaccine-induced immunity.
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