DOI: 10.1128/AAC.00747-12
ABSTRACT
Five VanN-type vancomycin-resistant Enterococcus faecium strains were isolated from a sample of domestic chicken meat in Japan. All isolates showed low-level resistance to vancomycin (MIC, 12 mg/liter) and had the same pulsed-field gel electrophoresis profile. The vancomycin resistance was encoded on a large plasmid (160 kbp) and was expressed constitutively. The VanN-type resistance operon was identical to the first resistance operon to be reported, with the exception of a 1-bp deletion in vanTN and a 1-bp substitution in vanSN.
FOOTNOTES
- Received 15 April 2012.
- Returned for modification 8 May 2012.
- Accepted 14 September 2012.
- Accepted manuscript posted online 24 September 2012.
Supplemental material for this article may be found at http://dx.doi.org/10.1128/AAC.00747-12.
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