Plasmid-Borne Mobile Colistin Resistance (MCR-1) In Healthy Humans and Poultry

Himen Salimizand; Foad Azmoudeh Ardalan; Samira  Amini; Hamed Aminrasouli; Farzad Badmasti

doi:10.63053/ijhes.3

Authors

Himen Salimizand Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
Foad Azmoudeh Ardalan Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
Samira Amini Student Research Committee, Kurdistan University of Medical Sciences,Tehran,Iran
Hamed Aminrasouli Department of Animal Sciences, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
Farzad Badmasti Department of Microbiology, Institute Pasteur of Iran, Tehran, Iran

DOI:

https://doi.org/10.63053/ijhes.3

Abstract

Background and aim: The emergence of antimicrobial-resistant bacteria has become a menace to global public health and socio-economic development. Colistin is used as the last resort antibiotic in refractory infections. However, resistant isolates are reported frequently. The aim of this study was to find mcr genes in healthy people poultry farms in Sanandaj, west of Iran.

Methods and materials: In this study, faecal samples were collected from two groups of humans and poultry. Colistin-containing screening media as well as colistin-EDTA-containing medium to screen plasmid-mediated colistin resistance. PCR for prevalent mcr genes was performed. Antimicrobial susceptibility testing was done for MCR-harboring isolates.

Results: In this study, no colistin-resistant bacteria were isolated from poultry samples (0%) while two human E. coli isolates showed resistance to colistin (0.59%). Of which, one isolate was inhibited by EDTA and harboured the MCR-1 variant. The MIC for colistin was 16 mg/L.

Conclusion: The results indicated the low prevalence of this gene in healthy individuals and the poultry industry. To the best of our knowledge, this is the first report of MCR in healthy individuals from Iran.

Author Biography

Himen Salimizand, Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran

Department of Microbiology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran

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