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Virulence Properties of mcr-1-Positive Escherichia coli Isolated from Retail Poultry Meat
- Source :
- Microorganisms, Vol 9, Iss 308, p 308 (2021), Microorganisms
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- The great plasticity and diversity of the Escherichia coli genome, together with the ubiquitous occurrence, make E. coli a bacterium of world-wide concern. Of particular interest are pathogenic strains and strains harboring antimicrobial resistance genes. Overlapping virulence-associated traits between avian-source E. coli and human extraintestinal pathogenic E. coli (ExPEC) suggest zoonotic potential and safety threat of poultry food products. We analyzed whole-genome sequencing (WGS) data of 46 mcr-1-positive E. coli strains isolated from retail raw meat purchased in the Czech Republic. The investigated strains were characterized by their phylogroup—B1 (43%), A (30%), D (11%), E (7%), F (4%), B2 (2%), C (2%), MLST type, and serotype. A total of 30 multilocus sequence types (STs), of which ST744 was the most common (11%), were identified, with O8 and O89 as the most prevalent serogroups. Using the VirulenceFinder tool, 3 to 26 virulence genes were detected in the examined strains and a total of 7 (15%) strains met the pathogenic criteria for ExPEC. Four strains were defined as UPEC (9%) and 18 (39%) E. coli strains could be classified as APEC. The WGS methods and available on-line tools for their evaluation enable a comprehensive approach to the diagnosis of virulent properties of E. coli strains and represent a suitable and comfortable platform for their detection. Our results show that poultry meat may serve as an important reservoir of strains carrying both virulence and antibiotic resistance genes for animal and human populations.
- Subjects :
- Microbiology (medical)
Serotype
Virulence
Biology
medicine.disease_cause
Microbiology
Genome
03 medical and health sciences
Virology
medicine
Raw meat
Escherichia coli
lcsh:QH301-705.5
030304 developmental biology
ExPEC
0303 health sciences
030306 microbiology
Communication
APEC
biology.organism_classification
lcsh:Biology (General)
Multilocus sequence typing
mcr-1-positive E. coli
MCR-1
Bacteria
WGS
MLST
Subjects
Details
- Language :
- English
- ISSN :
- 20762607
- Volume :
- 9
- Issue :
- 308
- Database :
- OpenAIRE
- Journal :
- Microorganisms
- Accession number :
- edsair.doi.dedup.....de420759602dfd85fe69f3a2451cabfa