Molecular Epidemiology of Fosfomycin Resistant from a Pigeon Farm in China.

Antibiotics (Basel)

National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.

Published: June 2021

AI Article Synopsis

  • * Out of these, 49 isolates were found to have high-level resistance and carried resistance genes on plasmids, with one prevalent sequence type (ST6856) being identified in 24.5% of resistant isolates.
  • * Our findings suggest that the pigeon farm may be a significant reservoir for these resistant bacteria, posing a potential risk for human infections, and highlight the need for ongoing monitoring.

Article Abstract

We determined the prevalence and molecular characteristics of fosfomycin-resistant from a domestic pigeon farm. A total of 79 samples collected from pigeons and their surrounding environments were screened for the presence of fosfomycin resistant isolates and these included 49 isolates that displayed high-level resistance (MIC ≥ 256 mg L) and carried the gene on plasmids with sizes ranging from 80 to 370 kb. MLST analysis of these -positive isolates indicated the presence of nine sequence types (ST6856, ST8804, ST457, ST746, ST533, ST165, ST2614, ST362 and ST8805) of which ST6856 was the most prevalent (24.5%, 12/49). PFGE combined with genomic context comparative analyses indicated that the gene was spread by horizontal transfer as well as via clonal transmission between in the pigeon farm, and IS played an important role in transmission. The high prevalence of in the pigeon farm and the high similarity of the genomic environment between isolates from humans and pigeons indicated that the pigeon farm served as a potential reservoir for human infections. The pigeon farm was found to be an important reservoir for the gene and this should be further monitored.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8300711PMC
http://dx.doi.org/10.3390/antibiotics10070777DOI Listing

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