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First detection of extended-spectrum cephalosporin- and fluoroquinolone-resistant Escherichia coli in Australian food-producing animals

Overview of attention for article published in Journal of Global Antimicrobial Resistance, September 2015
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Title
First detection of extended-spectrum cephalosporin- and fluoroquinolone-resistant Escherichia coli in Australian food-producing animals
Published in
Journal of Global Antimicrobial Resistance, September 2015
DOI 10.1016/j.jgar.2015.08.002
Pubmed ID
Authors

Sam Abraham, David Jordan, Hui S. Wong, James R. Johnson, Mark A. Toleman, David L. Wakeham, David M. Gordon, John D. Turnidge, Joanne L. Mollinger, Justine S. Gibson, Darren J. Trott

Abstract

This study aimed to define the frequency of resistance to critically important antimicrobials (CIAs) [i.e. extended-spectrum cephalosporins (ESCs), fluoroquinolones (FQs) and carbapenems] among Escherichia coli isolates causing clinical disease in Australian food-producing animals. Clinical E. coli isolates (n=324) from Australian food-producing animals [cattle (n=169), porcine (n=114), poultry (n=32) and sheep (n=9)] were compiled from all veterinary diagnostic laboratories across Australia over a 1-year period. Isolates underwent antimicrobial susceptibility testing to 18 antimicrobials using the Clinical and Laboratory Standards Institute disc diffusion method. Isolates resistant to CIAs underwent minimum inhibitory concentration determination, multilocus sequence typing (MLST), phylogenetic analysis, plasmid replicon typing, plasmid identification, and virulence and antimicrobial resistance gene typing. The 324 E. coli isolates from different sources exhibited a variable frequency of resistance to tetracycline (29.0-88.6%), ampicillin (9.4-71.1%), trimethoprim/sulfamethoxazole (11.1-67.5%) and streptomycin (21.9-69.3%), whereas none were resistant to imipenem or amikacin. Resistance was detected, albeit at low frequency, to ESCs (bovine isolates, 1%; porcine isolates, 3%) and FQs (porcine isolates, 1%). Most ESC- and FQ-resistant isolates represented globally disseminated E. coli lineages (ST117, ST744, ST10 and ST1). Only a single porcine E. coli isolate (ST100) was identified as a classic porcine enterotoxigenic E. coli strain (non-zoonotic animal pathogen) that exhibited ESC resistance via acquisition of blaCMY-2. This study uniquely establishes the presence of resistance to CIAs among clinical E. coli isolates from Australian food-producing animals, largely attributed to globally disseminated FQ- and ESC-resistant E. coli lineages.

X Demographics

X Demographics

The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 95 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Canada 1 1%
Unknown 94 99%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 13 14%
Student > Master 13 14%
Researcher 12 13%
Student > Doctoral Student 8 8%
Other 5 5%
Other 22 23%
Unknown 22 23%
Readers by discipline Count As %
Agricultural and Biological Sciences 18 19%
Veterinary Science and Veterinary Medicine 17 18%
Immunology and Microbiology 9 9%
Medicine and Dentistry 9 9%
Biochemistry, Genetics and Molecular Biology 4 4%
Other 12 13%
Unknown 26 27%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 May 2022.
All research outputs
#16,135,453
of 25,505,015 outputs
Outputs from Journal of Global Antimicrobial Resistance
#455
of 1,402 outputs
Outputs of similar age
#152,568
of 286,723 outputs
Outputs of similar age from Journal of Global Antimicrobial Resistance
#4
of 7 outputs
Altmetric has tracked 25,505,015 research outputs across all sources so far. This one is in the 34th percentile – i.e., 34% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,402 research outputs from this source. They receive a mean Attention Score of 3.8. This one has gotten more attention than average, scoring higher than 64% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 286,723 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 44th percentile – i.e., 44% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one. This one has scored higher than 3 of them.