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Associations between a decreased veterinary antimicrobial use and resistance in commensal Escherichia coli from Belgian livestock species (2011-2015)

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Abstract
In this study the possible association between antibiotic use and resistance was explored, focusing on commensal Escherichia colt from livestock (veal calves, young beef cattle, pigs and broiler chickens) in Belgium between 2011 and 2015. A continuous decreasing trend in antibiotic use was observed for all classes, except for the phenicols. Antibiotic resistance of commensal E. coli significantly decreased for several of the tested antibiotics in all livestock species. A more rapidly reverted resistance was seen to 3th/4th generation cephalosporins and fluoroquinolones. Moderate to strong correlations between antibiotic use and resistance were found, except for antibiotic resistance to chloramphenicol and gentamicin and the use of the corresponding antibiotic class. Yet, total antibiotic use was positively correlated with chloramphenicol resistance, showing the potential importance of co-selection for chloramphenicol resistance. These results suggest that national antimicrobial usage reduction campaigns have beneficial effects on the overall resistance levels. Analyses were performed on small datasets, though, and care must be taken while making inference. For more detailed analysis, antibiotic use data at an animal species level are required.
Keywords
Reduced antimicrobial use, Reverted antimicrobial resistance, CONSUMPTION, COUNTRIES, ANIMALS, PIGS

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MLA
Callens, Bénédicte, Mickaël Cargnel, Steven Sarrazin, et al. “Associations Between a Decreased Veterinary Antimicrobial Use and Resistance in Commensal Escherichia Coli from Belgian Livestock Species (2011-2015).” PREVENTIVE VETERINARY MEDICINE 157 (2018): 50–58. Print.
APA
Callens, Bénédicte, Cargnel, M., Sarrazin, S., Dewulf, J., Hoet, B., Vermeersch, K., Wattiau, P., et al. (2018). Associations between a decreased veterinary antimicrobial use and resistance in commensal Escherichia coli from Belgian livestock species (2011-2015). PREVENTIVE VETERINARY MEDICINE, 157, 50–58.
Chicago author-date
Callens, Bénédicte, Mickaël Cargnel, Steven Sarrazin, Jeroen Dewulf, Bart Hoet, Katie Vermeersch, Pierre Wattiau, and Sarah Welby. 2018. “Associations Between a Decreased Veterinary Antimicrobial Use and Resistance in Commensal Escherichia Coli from Belgian Livestock Species (2011-2015).” Preventive Veterinary Medicine 157: 50–58.
Chicago author-date (all authors)
Callens, Bénédicte, Mickaël Cargnel, Steven Sarrazin, Jeroen Dewulf, Bart Hoet, Katie Vermeersch, Pierre Wattiau, and Sarah Welby. 2018. “Associations Between a Decreased Veterinary Antimicrobial Use and Resistance in Commensal Escherichia Coli from Belgian Livestock Species (2011-2015).” Preventive Veterinary Medicine 157: 50–58.
Vancouver
1.
Callens B, Cargnel M, Sarrazin S, Dewulf J, Hoet B, Vermeersch K, et al. Associations between a decreased veterinary antimicrobial use and resistance in commensal Escherichia coli from Belgian livestock species (2011-2015). PREVENTIVE VETERINARY MEDICINE. 2018;157:50–8.
IEEE
[1]
B. Callens et al., “Associations between a decreased veterinary antimicrobial use and resistance in commensal Escherichia coli from Belgian livestock species (2011-2015),” PREVENTIVE VETERINARY MEDICINE, vol. 157, pp. 50–58, 2018.
@article{8577696,
  abstract     = {In this study the possible association between antibiotic use and resistance was explored, focusing on commensal Escherichia colt from livestock (veal calves, young beef cattle, pigs and broiler chickens) in Belgium between 2011 and 2015. A continuous decreasing trend in antibiotic use was observed for all classes, except for the phenicols. Antibiotic resistance of commensal E. coli significantly decreased for several of the tested antibiotics in all livestock species. A more rapidly reverted resistance was seen to 3th/4th generation cephalosporins and fluoroquinolones. Moderate to strong correlations between antibiotic use and resistance were found, except for antibiotic resistance to chloramphenicol and gentamicin and the use of the corresponding antibiotic class. Yet, total antibiotic use was positively correlated with chloramphenicol resistance, showing the potential importance of co-selection for chloramphenicol resistance. These results suggest that national antimicrobial usage reduction campaigns have beneficial effects on the overall resistance levels. Analyses were performed on small datasets, though, and care must be taken while making inference. For more detailed analysis, antibiotic use data at an animal species level are required.},
  author       = {Callens, Bénédicte and Cargnel, Mickaël and Sarrazin, Steven and Dewulf, Jeroen and Hoet, Bart and Vermeersch, Katie and Wattiau, Pierre and Welby, Sarah},
  issn         = {0167-5877},
  journal      = {PREVENTIVE VETERINARY MEDICINE},
  keywords     = {Reduced antimicrobial use,Reverted antimicrobial resistance,CONSUMPTION,COUNTRIES,ANIMALS,PIGS},
  language     = {eng},
  pages        = {50--58},
  title        = {Associations between a decreased veterinary antimicrobial use and resistance in commensal Escherichia coli from Belgian livestock species (2011-2015)},
  url          = {http://dx.doi.org/10.1016/j.prevetmed.2017.10.013},
  volume       = {157},
  year         = {2018},
}

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