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Prevalence and Profiles of Antibiotic Resistance Genes (A) and in Extended-Spectrum Beta-Lactamase (ESBL)-Producing Isolated from Dairy Calf Feces. | LitMetric

Prevalence and Profiles of Antibiotic Resistance Genes (A) and in Extended-Spectrum Beta-Lactamase (ESBL)-Producing Isolated from Dairy Calf Feces.

Microorganisms

Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA.

Published: February 2022

AI Article Synopsis

Article Abstract

The use of antibiotics to treat dairy calves may result in multidrug-resistant extended-spectrum beta-lactamase (ESBL)-producing . This study investigated fluoroquinolone and macrolide resistance genes among ESBL-producing isolated from dairy calves. Fresh fecal samples from 147 dairy calves across three age groups were enriched to select for ESBL-producing Plasmid-mediated fluoroquinolone (), macrolide ((A)), and beta-lactam ( groups 1 and 9) resistance genes were identified by PCR and gel electrophoresis in ESBL-producing . Beta-lactamase variants and antibiotic resistance genes were characterized for eight isolates by whole-genome sequencing. Seventy-one (48.3%) samples were positive for ESBL-producing , with 159 (70.4%) isolates identified as variant group 1 and 67 (29.6%) isolates as variant group 9. Resistance gene (A) was more commonly associated with variant group 1, while resistance gene was more commonly associated with variant group 9. growth was quantified on antibiotic media for 30 samples: 10 from each age group. Significantly higher quantities of ceftriaxone-resistant were present in the youngest calves. Results indicate the dominant groups present in ESBL-producing may be associated with additional or (A) resistance genes and ESBL-producing is found in higher abundance in younger calves.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8880659PMC
http://dx.doi.org/10.3390/microorganisms10020411DOI Listing

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