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Prevalence and characteristics of rmtB and qepA in Escherichia coli isolated from diseased animals in China

Overview of attention for article published in Frontiers in Microbiology, January 2013
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Title
Prevalence and characteristics of rmtB and qepA in Escherichia coli isolated from diseased animals in China
Published in
Frontiers in Microbiology, January 2013
DOI 10.3389/fmicb.2013.00198
Pubmed ID
Authors

Yu-Ting Deng, Zhen-Ling Zeng, Wei Tian, Tong Yang, Jian-Hua Liu

Abstract

16S rRNA methylase and QepA, a fluoroquinolone efflux pump, are new mechanisms of resistance against aminoglycosides and fluoroquinolone, respectively. One of 16S rRNA methylase genes, rmtB, was found to be associated with qepA, were both located on the same transposable element. In this study, we intended to determine the current prevalence and characteristics of the 16S rRNA methylase genes and qepA, and to study the association between rmtB and qepA. A total of 892 Escherichia coli isolates were collected from various diseased food-producing animals in China from 2004 to 2008 and screened by PCR for 16S rRNA methylase genes and qepA. About 12.6% (112/892) and 0.1% (1/892) of isolates that were highly resistant to amikacin were positive for rmtB and armA, respectively. The remaining five 16S rRNA methlyase genes were not detected. Thirty-six (4.0%) strains carried qepA. About 32.1% of rmtB-positive strains harbored qepA, which was not detected in rmtB-negative strains. Most strains were clonally unrelated, while identical PFGE profiles of rmtB-positive isolates were found in the same farm indicating clonal transmission. Conjugation experiments showed that rmtB was transferred to the recipients, and qepA also cotransferred with rmtB in some cases. The spread of E. coli of food animal origin harboring both rmtB and qepA suggests that surveillance for antimicrobial resistance of animal origin as well as the study of the mechanisms of resistance should be undertaken.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 30 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 30 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 4 13%
Student > Bachelor 4 13%
Student > Postgraduate 3 10%
Student > Doctoral Student 2 7%
Other 2 7%
Other 6 20%
Unknown 9 30%
Readers by discipline Count As %
Agricultural and Biological Sciences 4 13%
Medicine and Dentistry 4 13%
Immunology and Microbiology 4 13%
Biochemistry, Genetics and Molecular Biology 3 10%
Veterinary Science and Veterinary Medicine 3 10%
Other 1 3%
Unknown 11 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 15 July 2013.
All research outputs
#20,196,270
of 22,714,025 outputs
Outputs from Frontiers in Microbiology
#22,136
of 24,542 outputs
Outputs of similar age
#248,772
of 280,752 outputs
Outputs of similar age from Frontiers in Microbiology
#264
of 407 outputs
Altmetric has tracked 22,714,025 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
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