期刊
EMERGING MICROBES & INFECTIONS
卷 9, 期 1, 页码 535-538出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/22221751.2020.1733439
关键词
Salmonella Newport; antimicrobial resistance; colistin resistance; mcr-1; seafood
资金
- National Program on Key Research Project of China [2017YFC1600103, 2018YFD0500501, SQ2019YFE010999]
- Horizon 2020 Framework Programme [861917 - SAFFI]
- Zhejiang Provincial Natural Science Foundation [LR19C180001]
Worldwide emergence of Salmonella enterica serovar Newport (S. Newport) infection in humans, in parallel with a significant increasing prevalence of antimicrobial resistance (AR), is a serious public health concern. However, the prevalence of S. Newport resistance in China remains largely unknown. A retrospective study of 287 S. Newport clinical isolates collected during 1997-2018 was undertaken for characterization of AR profiles using the micro-dilution assay. We found a recent emergence of colistin resistance in four Chinese clinical isolates, including mcr-1-positive isolates. Importantly, phylogenomic and microbiological investigations indicate multiple independent clonal transmission of colistin-resistant S. Newport isolates of different seafood origins. Our study highlights potential reservoirs for transmission of colistin resistance and suggests that the global food supply chain may facilitate this dissemination.
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