DOI: 10.1128/AAC.02001-19
ABSTRACT
We identified fosA3 at a rate of 2.6% in 310 Salmonella isolates from food animals in Guangdong province, China. The fosA3 gene was genetically linked to diverse antibiotic resistance genes (ARGs), including mcr-1, blaCTX-M-14/55, oqxAB, and rmtB. These gene combinations were embedded in heterogeneous fosA3-containing multidrug resistance regions on the transferable ST3-IncHI2 and F33:A−:B− plasmids and the chromosome. This indicated a great flexibility of fosA3 cotransmission with multiple important ARGs among Salmonella species.
FOOTNOTES
- Received 3 October 2019.
- Returned for modification 29 October 2019.
- Accepted 31 October 2019.
- Accepted manuscript posted online 11 November 2019.
Supplemental material is available online only.
- Copyright © 2020 American Society for Microbiology.
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