Frequency distribution and prevalent sequence types of mcr-producing Escherichia coli among clinical isolates around the world: A systematic review
نویسندگان: Bahareh Hajikhani ©, Nazila Bostanshirin, Masoud Dadashi, Fatemeh Sameni, Somayeh Yaslianifard, Nafiseh Khosravi-Dehaghi, Mohammad Javad Nasiri, Mehdi Goudarzi, Ali Hashemi
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Background and Aim
The continuing rise in infections caused by multi-drug resistant (MDR) bacteria is one of the most serious public health issues in today's societies. Colistin is a last-resort antimicrobial medication used to treat infections caused by MDR gram-negative bacteria; therefore resistance to this antibiotic is extremely hazardous. The current study aimed to evaluate the global prevalence and distribution of colistin resistance genes among human clinical isolates of Escherichia coli (E. coli) as a systematic review.
PubMed, Embase, and Web of Science databases were systematically searched. For further evaluation, all original English-language articles that demonstrated colistin resistance in E. coli clinical isolates published between 2000 and 2020 were examined.
Out of 4857 initial articles, after various stages of review and evaluation, 190 related articles were selected. More than 79 % of the publications selected in this research were published from 2014 to 2020. In Asia, Europe, America, Africa, and Oceania, the prevalence of mobilized colistin resistance (mcr) producing colistin-resistant E. coli was 66.72%, 25.48%, 5.19%, 2.27%, and 0.32 %, respectively.
The recent widespread spreading of E. coli strains harboring mcr conferring colistin resistance, especially in Asia and Europe, is concerning and needs more attention.
Escherichia coli; mcr; colistin; antibiotic resistance; systematic review
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