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Quaternary Ammonium Compounds: A New Driver and Hidden Threat for Prevalence in Hospital Wastewater and Human Feces.
Environ Sci Technol
January 2025
National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
The emergence of mobile colistin resistance gene has attracted global attention. The prevalence of -positive (MCRPEC) in humans largely decreased following the ban of colistin as an animal growth promoter in China. However, the prevalence of MCRPEC in the hospital environment and the relationship between disinfectants and remain unclear.
View Article and Find Full Text PDFImported seafood is a reservoir of Enterobacteriaceae carrying CTX-M-encoding genes of high clinical relevance.
Int J Food Microbiol
January 2025
Department of Pathobiology and Population Sciences, Royal Veterinary College, NW1 0TU London, United Kingdom; Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark. Electronic address:
We determined the frequency, genotypes, phenotypes, and mobility of extended-spectrum β-lactamase (ESBL)-encoding genes in Enterobacteriaceae isolated from retail seafood products. Overall, 288 samples of fresh shrimps, catfish and seabass imported from Asia were collected from three supermarket chains in the UK (96 each). After enrichment in MacConkey broth supplemented with cefotaxime, total DNA was screened for the presence of CTX-M, SHV and TEM by real-time PCR.
View Article and Find Full Text PDFCharacteristics of the extended-spectrum-β-lactamase-producing Escherichia coli isolated from diseased livestock and poultry in Taiwan.
Sci Rep
November 2024
Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan.
Article Synopsis
- * ESBL-producing E. coli showed higher resistance to various antibiotics, while all isolates remained susceptible to imipenem, with a notable prevalence of the bla gene in both livestock and poultry strains.
- * Multilocus sequence typing identified unique strains of ESBL-producing E. coli, indicating livestock and poultry as important reservoirs for these antibiotic-resistant bacteria, highlighting the need for careful use of antimicrobials in farming.
Characterization of in two ST1193 clinical isolates in the Gulf region.
JAC Antimicrob Resist
December 2024
Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, USA.
Article Synopsis
- ST1193 is a high-risk bacterial clone found to carry genes for both CTX-type extended-spectrum β-lactamases and NDM-type carbapenemases, making it a significant concern in the Gulf region.
- Two separate multidrug-resistant isolates of ST1193 were identified using advanced techniques like MALDI-TOF MS and were shown to be resistant to carbapenem antibiotics through susceptibility testing.
- The study highlights the worry of antibiotic resistance, as the plasmids carrying the NDM-5 carbapenemase genes can transfer between bacteria, complicating treatment options and increasing challenges for infection control efforts.
High prevalence of multidrug-resistant Escherichia coli in retail aquatic products in China and the first report of mcr-1-positive extended-spectrum β-lactamase-producing E. coli ST2705 and ST10 in fish.
Int J Food Microbiol
October 2023
Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong Province 510070, China.
Article Synopsis
- Contamination of retail aquatic products in China by multidrug-resistant (MDR) E. coli poses a significant health risk to consumers, with 40% of samples found to contain E. coli and 19.9% showing resistance to multiple drugs.
- The study analyzed 849 samples from fish, shrimp, and shellfish across 39 cities and revealed high levels of antibiotic resistance, especially to tetracycline and trimethoprim-sulfamethoxazole.
- A variety of antibiotic resistance genes were identified, with a concerning prevalence of resistant strains, including colistin-resistant isolates associated with the mcr-1 gene, highlighting poor hygiene practices in retail markets.
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