ArticleApplied and environmental microbiology2013
Prevalence of extended-spectrum β-lactamase-producing Escherichia coli on Bavarian dairy and beef cattle farms.
Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.
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62 citing papers in PubMed, 132 citations in OpenAlex.
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- High prevalence of CTX-M-1 and CTX-M-15 extended-spectrum β-lactamase-producingVeterinary world · 2026Article
- Multidrug-Resistant and Potentially PathogenicFoods (Basel, Switzerland) · 2026Article
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- Antibiotic Use in Livestock and Environmental Antibiotic Resistance: A Narrative Review.Environmental health insights · 2025Review
- Characterizing Methicillin-ResistantAnimals : an open access journal from MDPI · 2024Article
- Antimicrobial resistance and prevalence of extended-spectrum beta-lactamase-producingMicrobiology spectrum · 2024Article
- Epidemiology, Virulence and Antimicrobial Resistance ofMicroorganisms · 2024Article
- Prevalence of Antibiotic-ResistantMicroorganisms · 2024Article
- Colostrum as a source of ESBL-Escherichia coli in feces of newborn calves.Scientific reports · 2024Article
- Prevalence and Risk Factors of β-Lactamase Genes of Extended-Spectrum β-Lactamases-ProducingEnvironmental health insights · 2024Article
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- Evaluation of Enterotoxins and Antimicrobial Resistance in Microorganisms Isolated from Raw Sheep Milk and Cheese: Ensuring the Microbiological Safety of These Products in Southern Brazil.Microorganisms · 2023Article
- Phylogenetic Analysis ofAntibiotics (Basel, Switzerland) · 2023Article
- Antimicrobial resistance and its relationship with antimicrobial use on Austrian dairy farms.Frontiers in veterinary science · 2023Article
- Prevalence and antimicrobial resistance profiles of extended-spectrum beta-lactamase-producingFrontiers in veterinary science · 2023Article
2 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli strains are believed to be widely distributed among humans and animals; however, to date, there are only few studies that support this assumption on a regional or countrywide scale. Therefore, a study was designed to assess the prevalence of ESBL-producing E. coli in dairy cows and beef cattle in the southern part of Bavaria, Germany. The study population included 30 mixed dairy and beef cattle farms and 15 beef cattle farms. Fecal samples, boot swabs, and dust samples were analyzed for ESBL-producing E. coli using selective media. PCR was performed to screen for CTX-M and ampC resistance genes. A total of 598 samples yielded 196 (32.8%) that contained ESBL-producing E. coli, originating from 39 (86.7%) of 45 farms. Samples obtained from mixed farms were significantly more likely to be ESBL-producing E. coli positive than samples from beef cattle farms (fecal samples, P < 0.001; boot swabs, P = 0.014; and dust samples, P = 0.041). A total of 183 isolates (93.4%) of 196 ESBL-producing E. coli-positive strains harbored CTX-M genes, CTX-M group 1 being the most frequently found group. Forty-six additional isolates contained ampC genes, and 5 of the 46 isolates expressed a blaCMY-2 gene. The study shows that ESBL-producing E. coli strains are commonly found on Bavarian dairy and beef cattle farms. Moreover, to our knowledge, this is the first report of the occurrence of blaCMY-2 in cattle in Germany.
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