Detection of Yersinia enterocolitica serogroup O:3 by a PCR method

V Weynants, V Jadot, P A Denoel, A Tibor, J J Letesson

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Yersinia enterocolitica is the etiologic agent of a range of clinical situations in humans, but only a small number of serotypes are involved. Among these, Y. enterocolitica O:3 is the most frequently implicated. A PCR method was developed to detect Y. enterocolitica O:3. For this purpose, two pairs of primers were designed to amplify two fragments of the rfb cluster of Y. enterocolitica O:3: a 253-bp fragment of the rfbB gene and a 405-bp fragment of the rfbC gene. A specific detection was obtained only with rfbC primers, which yielded a PCR product of the expected size exclusively with pathogenic Y. enterocolitica of serotype O:3. This pair of primers was combined with the ail, inv, and virF primers previously described (H. Nakajima, M. Inoue, T. Mori, K.-I. Itoh, E. Arakawa, and H. Watanabe, J. Clin. Microbiol. 30:2484-2486, 1992) to allow both the detection and the differentiation between Y. pseudotuberculosis, pathogenic Y. enterocolitica of serotype O:3 and other pathogenic Y. enterocolitica.
langue originaleAnglais
Pages (de - à)1224-7
Nombre de pages4
journalJournal of clinical microbiology
Numéro de publication5
Etat de la publicationPublié - 1996

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