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Journal of Clinical Microbiology, August 2001, p. 2891-2896, Vol. 39, No. 8
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.8.2891-2896.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Burkholderia cepacia Complex Infection in Italian Patients with Cystic Fibrosis: Prevalence, Epidemiology, and Genomovar Status

Antonella Agodi,1 Eshwar Mahenthiralingam,2 Martina Barchitta,1 Viviana Gianninò,3 Agata Sciacca,4 and Stefania Stefani3,*

Department of Biomedical Sciences,1 Department of Microbiological and Gynecological Sciences,3 and Microbiological Laboratory, Policlinico,4 University of Catania, Catania, Italy, and School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom2

Received 17 January 2001/Returned for modification 14 March 2001/Accepted 7 May 2001

The prevalence, epidemiology, and genomovar status of Burkholderia cepacia complex strains recovered from Italian cystic fibrosis (CF) patients were investigated using genetic typing and species identification methods. Four CF treatment centers were examined: two in Sicily, one in central Italy, and one in northern Italy. B. cepacia complex bacteria were isolated from 59 out of 683 CF patients attending these centers (8.6%). For the two geographically related treatment centers in Sicily, there was a high incidence of infection caused by a single epidemic clone possessing the cblA gene and belonging to B. cepacia genomovar III, recA group III-A, closely related to the major North America-United Kingdom clone, ET12; instability of the cblA sequence was also demonstrated for clonal isolates. In summary, of all the strains of B. cepacia encountered in the Italian CF population, the genomovar III, recA group III-A strains were the most prevalent and transmissible. However, patient-to-patient spread was also observed with several other genomovars, including strains of novel taxonomic status within the B. cepacia complex. A combination of genetic identification and molecular typing analysis is recommended to fully define specific risks posed by the genomovar status of strains within the B. cepacia complex.

* Corresponding author. Mailing address: Section of Microbiology of the Department of Microbiological and Gynecological Sciences, University of Catania, Via Androne 81, 95124 Catania, Italy. Phone: 39 (095) 311352. Fax: 39 (095) 325032. E-mail: stefanis{at}mbox.unict.it.

Journal of Clinical Microbiology, August 2001, p. 2891-2896, Vol. 39, No. 8
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.8.2891-2896.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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