Virulence Factors of Avian Pathogenic Escherichia Coli Strains Isolated from Chickens with Colisepticemia in Japan

2007 ◽  
Vol 51 (3) ◽  
pp. 656-662 ◽  
Author(s):  
K. Yaguchi ◽  
T. Ogitani ◽  
R. Osawa ◽  
M. Kawano ◽  
N. Kokumai ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Avian Pathogenic Escherichia Coli ◽  
Pathogenic Escherichia Coli

scholarly journals Virulence factors of avian pathogenic Escherichia coli (APEC)

2009 ◽  
Vol 29 (7) ◽  
pp. 479-486 ◽  
Author(s):  
Gerson Nakazato ◽  
Tatiana Amabile de Campos ◽  
Eliana Guedes Stehling ◽  
Marcelo Brocchi ◽  
Wanderley Dias da Silveira
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Economic Losses ◽  
Virulence Determinants ◽  
Avian Pathogenic Escherichia Coli ◽  
Pathogenic Escherichia Coli

Avian pathogenic Escherichia coli (APEC) strains cause a great diversity of diseases in birds and are responsible for great economic losses in the avian industry. To date, several studies have been carried out to better understand the APEC pathogenesis for a possible development of tools which could prevent the economics losses caused by these strains. This review discusses the virulence factors described do date to be expressed by these strains and the advances made to understand and identify virulence determinants present in APEC.

Virulence Factors of Avian Pathogenic Escherichia coli Isolated from Broilers from the South of Brazil

2002 ◽  
Vol 46 (3) ◽  
pp. 749-753 ◽  
Author(s):  
Ana Cristina Gonçalves Pinto da Rocha ◽  
Ari Bernardes da Silva ◽  
Benito Guimarães de Brito ◽  
Hamilton Luiz de Souza Moraes ◽  
Alexandre Pontes Pontes ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Avian Pathogenic Escherichia Coli ◽  
The South ◽  
Pathogenic Escherichia Coli ◽  
South Of Brazil

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

2019 ◽  
Vol 63 (3) ◽  
pp. 317-320 ◽  
Author(s):  
Xiaojing Xu ◽  
Qing Sun ◽  
Lixiang Zhao
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
Virulence Factors ◽  
Virulence Genes ◽  
Eastern China ◽  
Economic Losses ◽  
Avian Pathogenic Escherichia Coli ◽  
Phylogenetic Groups ◽  
Important Data ◽  
Pathogenic Escherichia Coli

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.

scholarly journals Avian Pathogenic Escherichia coli (APEC): An Overview of Virulence and Pathogenesis Factors, Zoonotic Potential, and Control Strategies

Pathogens ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 467
Author(s):  
Dipak Kathayat ◽  
Dhanashree Lokesh ◽  
Sochina Ranjit ◽  
Gireesh Rajashekara
Keyword(s):  
Escherichia Coli ◽  
Current Status ◽  
Neonatal Meningitis ◽  
Clear Understanding ◽  
Zoonotic Potential ◽  
Secretion Systems ◽  
Avian Pathogenic Escherichia Coli ◽  
E Coli ◽  
Pathogenic Escherichia Coli ◽  
Tract Infections

Avian pathogenic Escherichia coli (APEC) causes colibacillosis in avian species, and recent reports have suggested APEC as a potential foodborne zoonotic pathogen. Herein, we discuss the virulence and pathogenesis factors of APEC, review the zoonotic potential, provide the current status of antibiotic resistance and progress in vaccine development, and summarize the alternative control measures being investigated. In addition to the known virulence factors, several other factors including quorum sensing system, secretion systems, two-component systems, transcriptional regulators, and genes associated with metabolism also contribute to APEC pathogenesis. The clear understanding of these factors will help in developing new effective treatments. The APEC isolates (particularly belonging to ST95 and ST131 or O1, O2, and O18) have genetic similarities and commonalities in virulence genes with human uropathogenic E. coli (UPEC) and neonatal meningitis E. coli (NMEC) and abilities to cause urinary tract infections and meningitis in humans. Therefore, the zoonotic potential of APEC cannot be undervalued. APEC resistance to almost all classes of antibiotics, including carbapenems, has been already reported. There is a need for an effective APEC vaccine that can provide protection against diverse APEC serotypes. Alternative therapies, especially the virulence inhibitors, can provide a novel solution with less likelihood of developing resistance.

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