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Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle

Mycoplasma bovis is particularly adept at evading the immune system, resulting in chronic infections of the lungs and joints of feedlot cattle. The chronicity of the lesions results in prolonged antimicrobial therapy, possibly exacerbating antimicrobial resistance. This cross-sectional study generat...

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Autores principales: Jelinski, Murray, Kinnear, Andrea, Gesy, Karen, Andrés-Lasheras, Sara, Zaheer, Rahat, Weese, Scott, McAllister, Tim A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022776/
https://www.ncbi.nlm.nih.gov/pubmed/31963269
http://dx.doi.org/10.3390/microorganisms8010124
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author Jelinski, Murray
Kinnear, Andrea
Gesy, Karen
Andrés-Lasheras, Sara
Zaheer, Rahat
Weese, Scott
McAllister, Tim A.
author_facet Jelinski, Murray
Kinnear, Andrea
Gesy, Karen
Andrés-Lasheras, Sara
Zaheer, Rahat
Weese, Scott
McAllister, Tim A.
author_sort Jelinski, Murray
collection PubMed
description Mycoplasma bovis is particularly adept at evading the immune system, resulting in chronic infections of the lungs and joints of feedlot cattle. The chronicity of the lesions results in prolonged antimicrobial therapy, possibly exacerbating antimicrobial resistance. This cross-sectional study generated in vitro antimicrobial susceptibility testing (AST) data on 211 M. bovis isolates recovered from 159 healthy, diseased, and dead cattle, spanning the period of 2006–2018. Nine antimicrobials commonly administered to western Canadian feedlot cattle were assessed. The data were analyzed with non-parametric statistical tests with a level of significance of p < 0.05 (two-tailed). Minimum inhibitory concentration (MIC) values tended to increase between the isolates from healthy versus dead cattle and over time (2006–2018). Isolates from dead versus healthy cattle were more likely to be resistant to tulathromycin, gamithromycin, tylosin and enrofloxacin. There was no difference in the distributions of the MICs generated from the isolates recovered from the lungs and joints (p ≥ 0.124) and the lungs and deep nasal passages (p ≥ 0.157) of the same animals.
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spelling pubmed-70227762020-03-11 Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle Jelinski, Murray Kinnear, Andrea Gesy, Karen Andrés-Lasheras, Sara Zaheer, Rahat Weese, Scott McAllister, Tim A. Microorganisms Article Mycoplasma bovis is particularly adept at evading the immune system, resulting in chronic infections of the lungs and joints of feedlot cattle. The chronicity of the lesions results in prolonged antimicrobial therapy, possibly exacerbating antimicrobial resistance. This cross-sectional study generated in vitro antimicrobial susceptibility testing (AST) data on 211 M. bovis isolates recovered from 159 healthy, diseased, and dead cattle, spanning the period of 2006–2018. Nine antimicrobials commonly administered to western Canadian feedlot cattle were assessed. The data were analyzed with non-parametric statistical tests with a level of significance of p < 0.05 (two-tailed). Minimum inhibitory concentration (MIC) values tended to increase between the isolates from healthy versus dead cattle and over time (2006–2018). Isolates from dead versus healthy cattle were more likely to be resistant to tulathromycin, gamithromycin, tylosin and enrofloxacin. There was no difference in the distributions of the MICs generated from the isolates recovered from the lungs and joints (p ≥ 0.124) and the lungs and deep nasal passages (p ≥ 0.157) of the same animals. MDPI 2020-01-16 /pmc/articles/PMC7022776/ /pubmed/31963269 http://dx.doi.org/10.3390/microorganisms8010124 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jelinski, Murray
Kinnear, Andrea
Gesy, Karen
Andrés-Lasheras, Sara
Zaheer, Rahat
Weese, Scott
McAllister, Tim A.
Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle
title Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle
title_full Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle
title_fullStr Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle
title_full_unstemmed Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle
title_short Antimicrobial Sensitivity Testing of Mycoplasma bovis Isolates Derived from Western Canadian Feedlot Cattle
title_sort antimicrobial sensitivity testing of mycoplasma bovis isolates derived from western canadian feedlot cattle
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022776/
https://www.ncbi.nlm.nih.gov/pubmed/31963269
http://dx.doi.org/10.3390/microorganisms8010124
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