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Journal of Clinical Microbiology, May 2005, p. 2467-2470, Vol. 43, No. 5
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.5.2467-2470.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Identification of Shigella sonnei Biotype g Isolates Carrying Class 2 Integrons in Italy (2001 to 2003)

Caterina Mammina,^1* Mirella Pontello,² Anna Dal Vecchio,² Antonino Nastasi,³ and the Shigella sonnei Working Group

Dipartimento di Igiene e Microbiologia G. D'Alessandro, Università degli Studi, Palermo,¹ Istituto di Igiene, Università degli Studi, Milan,² Dipartimento di Sanità Pubblica, Università degli Studi, Florence, Italy³

Received 26 July 2004/ Returned for modification 5 September 2004/ Accepted 27 December 2004

Phenotyping and genotyping have been carried out on 64 epidemic and sporadic isolates of Shigella sonnei identified in Italy in the years 2001 to 2003. Class 2 integron carriage has been also investigated. Isolates from four of the five outbreaks and four of six sporadic cases were biotype g, pulsed-field gel electrophoresis type B, and class 2 integron positive, suggesting emergence and spread of an epidemic clone in Italy.

The members of the Shigellasonnei Working Group are Natale Lorenzi, Azienda Sanitaria Locale (ASL), Bergamo, Italy; Marco Passera, Laboratorio Sanità Pubblica, Bergamo, Italy; Theodora Kourenta and Filomena Ciziceno, ASL, Province of Milan 2, Italy; Milena Arghittu and Patrizia Cambieri, Hospital of Melegnano, Milan, Italy; Cristina Romani, Dipartimento di Sanità Pubblica, Florence, Italy; Francesca Di Bernardo and Francesca Merlino, Ospedale Pediatrico G. Di Cristina, Palermo, Italy; Anna D'Accardo, Elvira Di Stefano, Mario Menozzi, and Patrizia Mondello, Azienda Ospedaliera V. Cervello, Palermo, Italy; and Nicolò Casuccio, Claudio D'Angelo, and Salvatore Sammarco, Servizio di Epidemiologia, Dipartimento di Prevenzione ASL 6, Palermo, Italy.

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