Occurrence and characterization of Salmonella enterica subspecies enterica serovar 9,12:l,v:- strains from Bulgaria, Denmark, and the United States

P Petrov, Rene S. Hendriksen, T. Kantardjiev, G. Asseva, Gitte Sørensen, P. Fields, M. Mikoleit, J. Whichard, J. R. McQuiston, M Torpdahl, Frank Møller Aarestrup, F J Angulo

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In 2006, Salmonella enterica serovar I 9,12:l,v:- emerged in Bulgaria. The aim of this study was to characterize Salmonella serovar I 9,12:l,v:- isolates from Bulgaria, Denmark, and the United States. We compared isolates of Salmonella I 9,12:l,v:- and diphasic serovars with similar antigenic formulas by pulsed-field gel electrophoresis (PFGE) and antimicrobial susceptibility. The phase 2 flagellin gene (fljB) was also sequenced for selected isolates. By PFGE, the Salmonella I 9,12:l,v:- isolates from Bulgaria were indistinguishable from the isolate from the United States and distinct from isolates from Denmark; furthermore, several Salmonella I 9,12:l,v:- were indistinguishable from an isolate of Salmonella serovar Goettingen. Sequence analysis showed 100% sequence identity with known H:e,n,z15 sequences of Salmonella Goettingen, which has the antigenic formula I 9,12:l,v:e,n,z15. The study indicated that Salmonella I 9,12:l,v:- is a monophasic variant of Salmonella Goettingen and is present in different countries and on different continents.
Original languageEnglish
JournalEuropean Journal of Clinical Microbiology & Infectious Diseases
Volume28
Issue number5
Pages (from-to)473-479
ISSN0934-9723
DOIs
Publication statusPublished - 2009

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