Title |
Prevalence of the mcr-1 colistin resistance gene in extended-spectrum β-lactamase-producing Escherichia coli from human faecal samples collected in 2012 in rural villages in Shandong Province, China
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Published in |
International Journal of Antimicrobial Agents, March 2017
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DOI | 10.1016/j.ijantimicag.2016.12.018 |
Pubmed ID | |
Authors |
Zhenwang Bi, Björn Berglund, Qiang Sun, Maud Nilsson, Baoli Chen, Maria Tärnberg, Lilu Ding, Cecilia Stålsby Lundborg, Zhenqiang Bi, Göran Tomson, Jingjing Yao, Zhanying Gu, Xiao Yin, Zengqiang Kou, Lennart E. Nilsson |
Abstract |
Since its initial discovery in China in 2015, the plasmid-mediated colistin resistance gene mcr-1 has been reported in Escherichia coli isolated from clinical samples, animals and meat worldwide. In this study, 706 extended-spectrum β-lactamase (ESBL)-producing E. coli from 411 persons were detected in a collection of faecal samples from 1000 rural residents in three counties in Shandong Province, China. These isolates were screened for mcr-1 and phenotypic colistin resistance. The gene was found in 3.5% of the isolates (from 4.9% of persons) from all three counties. All isolates with phenotypic colistin resistance carried mcr-1. These data indicate that commensal carriage of ESBL-producing E. coli with mcr-1 among persons in rural China was already present in 2012 and that mcr-1 was the most important colistin resistance mechanism. Interventions are necessary to minimise further dissemination of mcr-1, which would limit the future usefulness of colistin as a last-resort antibiotic. |
X Demographics
Geographical breakdown
Country | Count | As % |
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France | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 96 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 18 | 19% |
Student > Master | 18 | 19% |
Student > Ph. D. Student | 13 | 14% |
Student > Doctoral Student | 7 | 7% |
Student > Bachelor | 5 | 5% |
Other | 12 | 13% |
Unknown | 23 | 24% |
Readers by discipline | Count | As % |
---|---|---|
Immunology and Microbiology | 14 | 15% |
Agricultural and Biological Sciences | 13 | 14% |
Medicine and Dentistry | 10 | 10% |
Biochemistry, Genetics and Molecular Biology | 9 | 9% |
Veterinary Science and Veterinary Medicine | 7 | 7% |
Other | 9 | 9% |
Unknown | 34 | 35% |