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OXA-48 and CTX-M-15 extended-spectrum beta-lactamases in raw milk in Lebanon: epidemic spread of dominant Klebsiella pneumoniae clones
- Source :
- Journal of Medical Microbiology, Journal of Medical Microbiology, Society for General Microbiology, 2017, 66 (11), pp.1688-1691. ⟨10.1099/jmm.0.000620⟩, Journal of Medical Microbiology, 2017, 66 (11), pp.1688-1691. ⟨10.1099/jmm.0.000620⟩
- Publication Year :
- 2017
-
Abstract
- International audience; Raw milk has recently been reported as a source of extended-spectrum beta-lactamase (ESBL) and carbapenemase genes. We thus investigated the prevalence of ESBL- and carbapenemase-producing Enterobacteriaceae in raw milk in Lebanon in order to assess the risk of transfer of these bacteria to humans. A high prevalence (30.2 %) of CTX-M-15-producing K. pneumoniae was detected in raw bovine milk. Three main K. pneumoniae clones were identified by PFGE and MLST typing. Southern blot experiments revealed that one of these clones carried the blaCTX-M-15 gene chromosomally. Moreover, one OXA-48-producing K. pneumoniae ST530 and seven CTX-M-15-producing Escherichia coli sharing the same ST were also detected. These findings highlight the spread of dominant CTX-M-15-producing K. pneumoniae clones and OXA-48-producing isolates in the food chain. Milk, which is mostly consumed raw in Lebanon, may be a source of human exposure to ESBLs and carbapenemases.
- Subjects :
- 0301 basic medicine
Microbiology (medical)
CTX-M-15
Klebsiella pneumoniae
030106 microbiology
MESH: Klebsiella pneumoniae
MESH: beta-Lactamases
medicine.disease_cause
Microbiology
beta-Lactamases
03 medical and health sciences
carbapenemase
MESH: Anti-Bacterial Agents
Drug Resistance, Multiple, Bacterial
medicine
Pulsed-field gel electrophoresis
polycyclic compounds
Escherichia coli
Animals
MESH: Animals
Typing
MESH: Lebanon
Lebanon
OXA-48
Southern blot
MESH: Gene Expression Regulation, Bacterial
biology
MESH: Escherichia coli
[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology
General Medicine
MESH: Drug Resistance, Multiple, Bacterial
Gene Expression Regulation, Bacterial
Raw milk
biochemical phenomena, metabolism, and nutrition
biology.organism_classification
bacterial infections and mycoses
Virology
Enterobacteriaceae
[SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology
3. Good health
Anti-Bacterial Agents
MESH: Milk
MESH: Cattle
Milk
Multilocus sequence typing
Cattle
Subjects
Details
- ISSN :
- 14735644 and 00222615
- Volume :
- 66
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Journal of medical microbiology
- Accession number :
- edsair.doi.dedup.....1d1c85e1cebb30338818e674a893d2ce