Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran
Background: Antimicrobial resistance is one of the main challenges in diarrheal diseases in human and animals. Regardless to the main reason of the disease, approximately all antimicrobial actions including treatment, control and prevention are mostly centralized against Escherichi...
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Alborz University of Medical Sciences
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doaj-bd11a398a3524fd380bf1d590cda513b2020-11-24T23:02:47ZengAlborz University of Medical SciencesInternational Journal of Enteric Pathogens2345-33622322-58662016-11-0144e3710510.15171/ijep.2016.15ijep-20161017103253Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of IranZahedeh Naderi0Reza Ghanbarpour1Masoud Sami2Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, IR IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, IR IranDepartment of Food Sciences and Technology, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, IR IranBackground: Antimicrobial resistance is one of the main challenges in diarrheal diseases in human and animals. Regardless to the main reason of the disease, approximately all antimicrobial actions including treatment, control and prevention are mostly centralized against Escherichia coli (E. coli) strains. Objectives: This work purposed to antimicrobial resistance (AR) and determinate virulence genes and phylogenetic groups in E. coli isolates (n=170) obtained from calves with diarrhea. Materials and methods: Isolates were molecular characterized for 17 AR genes and 3 phylogenetic sequences. AR phenotyping were performed on all strains for 12 antimicrobial agents by using disc diffusion method. Results: All AR genes but qnrS were identified with different prevalence in E. coli isolates that the most common genes were aadA (20%), blaTEM (11.7%) and sulII (11.2 %) belonging to aminoglycoside, β-lactamase and sulphonamide families, respectively. Resistance to the penicillin and sulphamethoxazole drugs was found in 100% of isolates and followed by tetracycline (73.5%), streptomycin (60%), trimethoprim sulphamethoxazole (56.5%) and kanamycin (53.5%). The phylogenetic groups A and B1 considerably surrounded the majority of isolates with the frequency of 65.8% and 30.6%, respectively. Conclusions: In Iran, diarrheic calves have an important role as reservoir of resistant E. coli strains against the some drugs which are registered for treatment of calf diarrhea.http://enterpathog.abzums.ac.ir/PDF/ijep-4-5.pdfAntibiotic resistancediarrheacalvesEscherichia coliphylogenetic |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zahedeh Naderi Reza Ghanbarpour Masoud Sami |
spellingShingle |
Zahedeh Naderi Reza Ghanbarpour Masoud Sami Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran International Journal of Enteric Pathogens Antibiotic resistance diarrhea calves Escherichia coli phylogenetic |
author_facet |
Zahedeh Naderi Reza Ghanbarpour Masoud Sami |
author_sort |
Zahedeh Naderi |
title |
Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran |
title_short |
Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran |
title_full |
Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran |
title_fullStr |
Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran |
title_full_unstemmed |
Antimicrobial Resistance Characteristics and Phylogenetic Groups of Escherichia coli Isolated From Diarrheic Calves in Southeast of Iran |
title_sort |
antimicrobial resistance characteristics and phylogenetic groups of escherichia coli isolated from diarrheic calves in southeast of iran |
publisher |
Alborz University of Medical Sciences |
series |
International Journal of Enteric Pathogens |
issn |
2345-3362 2322-5866 |
publishDate |
2016-11-01 |
description |
Background: Antimicrobial resistance is one of the main challenges in diarrheal diseases in
human and animals. Regardless to the main reason of the disease, approximately all
antimicrobial actions including treatment, control and prevention are mostly centralized against
Escherichia coli (E. coli) strains.
Objectives: This work purposed to antimicrobial resistance (AR) and determinate virulence
genes and phylogenetic groups in E. coli isolates (n=170) obtained from calves with diarrhea.
Materials and methods: Isolates were molecular characterized for 17 AR genes and 3
phylogenetic sequences. AR phenotyping were performed on all strains for 12 antimicrobial
agents by using disc diffusion method.
Results: All AR genes but qnrS were identified with different prevalence in E. coli isolates that
the most common genes were aadA (20%), blaTEM (11.7%) and sulII (11.2 %) belonging to
aminoglycoside, β-lactamase and sulphonamide families, respectively. Resistance to the
penicillin and sulphamethoxazole drugs was found in 100% of isolates and followed by
tetracycline (73.5%), streptomycin (60%), trimethoprim sulphamethoxazole (56.5%) and
kanamycin (53.5%). The phylogenetic groups A and B1 considerably surrounded the majority of
isolates with the frequency of 65.8% and 30.6%, respectively.
Conclusions: In Iran, diarrheic calves have an important role as reservoir of resistant E. coli
strains against the some drugs which are registered for treatment of calf diarrhea. |
topic |
Antibiotic resistance diarrhea calves Escherichia coli phylogenetic |
url |
http://enterpathog.abzums.ac.ir/PDF/ijep-4-5.pdf |
work_keys_str_mv |
AT zahedehnaderi antimicrobialresistancecharacteristicsandphylogeneticgroupsofescherichiacoliisolatedfromdiarrheiccalvesinsoutheastofiran AT rezaghanbarpour antimicrobialresistancecharacteristicsandphylogeneticgroupsofescherichiacoliisolatedfromdiarrheiccalvesinsoutheastofiran AT masoudsami antimicrobialresistancecharacteristicsandphylogeneticgroupsofescherichiacoliisolatedfromdiarrheiccalvesinsoutheastofiran |
_version_ |
1725635173496651776 |