<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec id="j_jvetres-2019-0056_s_005">
<h3>Introduction</h3>
<p>Avian pathogenic<italic>Escherichia coli</italic> (APEC) causes serious colibacillosis and significant economic losses. Data on profiles of virulence factors and antibiotic resistances among APEC strains are crucial to the control of infection. In this study, strains were isolated from eastern China, and the prevalence of virulence factors and distribution of antibiotic resistance were determined.</p></sec>
<sec id="j_jvetres-2019-0056_s_006">
<h3>Material and Methods</h3>
<p>APEC strains were isolated and characterised by PCR for O serogroups, virulence factor genes, antibiotic resistance, and phylogenetic groups.</p></sec>
<sec id="j_jvetres-2019-0056_s_007">
<h3>Results</h3>
<p>O78 was the most prevalent serogroup and type A was the most frequent phylogenetic group. The<italic>fimH</italic>,<italic>feoB</italic>, and<italic>iron</italic> genes were the most prevalent among the isolates. All isolates were multiresistant, and all strains were resistant to ampicillin and tetracycline, which are widely used in the poultry industry in China.</p></sec>
<sec id="j_jvetres-2019-0056_s_008">
<h3>Conclusion</h3>
<p>This study provided important data on the presence of virulence genes and antibiotic resistance profiles of APEC from poultry farms in eastern China.</p></sec></abstract>

Introduction
Avian pathogenicEscherichia coli (APEC) causes serious colibacillosis and significant economic losses. Data on profiles of virulence factors and antibiotic resistances among APEC strains are crucial to the control of infection. In this study, strains were isolated from eastern China, and the prevalence of virulence factors and distribution of antibiotic resistance were determined.

Material and Methods
APEC strains were isolated and characterised by PCR for O serogroups, virulence factor genes, antibiotic resistance, and phylogenetic groups.

Results
O78 was the most prevalent serogroup and type A was the most frequent phylogenetic group. ThefimH,feoB, andiron genes were the most prevalent among the isolates. All isolates were multiresistant, and all strains were resistant to ampicillin and tetracycline, which are widely used in the poultry industry in China.

Conclusion
This study provided important data on the presence of virulence genes and antibiotic resistance profiles of APEC from poultry farms in eastern China.

Virulence factors and antibiotic resistance of avian pathogenic <italic>Escherichia coli</italic> in eastern China

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Virulence factors and antibiotic resistance of avian pathogenic  in eastern China

Introduction
Avian pathogenicEscherichia coli (APEC) causes serious colibacillosis and significant economic losses. Data on profiles of virulence factors and...

Virulence factors and antibiotic resistance of avian pathogenic Escherichia coli in eastern China

Published Online: Sep 13, 2019

Page range: 317 - 320

Received: Feb 15, 2019

Accepted: Aug 07, 2019

DOI: https://doi.org/10.2478/jvetres-2019-0056

Keywords
chicken, phylogenetic group, virulence factors, antibiotic resistance

© 2019 X. Xu et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Virulence factors and antibiotic resistance of avian pathogenic Escherichia coli in eastern China

Published Online: Sep 13, 2019

Page range: 317 - 320

Received: Feb 15, 2019

Accepted: Aug 07, 2019

DOI: https://doi.org/10.2478/jvetres-2019-0056

Keywordschicken, phylogenetic group, virulence factors, antibiotic resistance

© 2019 X. Xu et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
chicken, phylogenetic group, virulence factors, antibiotic resistance