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Virulence characterization of <i>Escherichia coli</i> sequence type 131 clone isolated from hospital-acquired and community-acquired urinary tract infections, Egypt

Article

Last updated: 25 Dec 2024

Subjects

-

Tags

Microbial genetics and Proteomics

Abstract

The recently emerged E. coli ST131 clone is now a predominant cause of UTIs. There is a need to understand the virulence characteristics of this clone to limit its dissemination. We aimed to detect the presence of ST131 clones among E. coli strains isolated from UTI infections and compare the virulence carriage capacity between ST131 and non-ST131 strains. A total of 89 (63.5%) E. coli strains isolated from 140 patients with UTI were investigated for six different virulence genes using PCR-based assays. Overall, 65 of 89 (73%) E. coli isolates belonged to the ST131 clone. Of these, 61 isolates (93.8%) were of the O25-ST131 clone, and only 4 isolates (6.2%) were of the O16-ST131 clone. From 24 catheterized patients, 20 (83.3%) were positive for the ST131 clone. Regarding the adhesin virulence genes, the fimH gene was detected in all studied isolates. Then, papEF, sfa(sfa/foc), and papA genes were found in 59.6%, 53.9%, and 30.3% of isolates, respectively. However, the iroN and hylA genes were found in 52.8% and 16.9%, respectively. E. coli ST131 isolates exhibited a higher prevalence among hospital-acquired UTIs than community-acquired UTIs, raising concern that this emerging clone has become a threat to nosocomial infections. The high virulence potential among E. coli ST131 isolates suggests that the virulence characterizations of this clone are in a continuous step-up evolution. More importantly, increased carriage of adhesin genes among ST131 isolates was demonstrated and can be targeted to develop new management strategies for UTI infections.

DOI

10.21608/mid.2024.275654.1837

Keywords

E. coli, ST131 clone, Virulence, UTIs

Authors

First Name

Soha

Last Name

Abdelrahim

MiddleName

S

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt

Email

soha.abdelrahim@mu.edu.eg

City

-

Orcid

-

First Name

Shaimaa

Last Name

Zaki

MiddleName

-

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt

Email

shimaa.minia@gmail.com

City

Minia

Orcid

-

First Name

Haitham

Last Name

Abdel Hamid

MiddleName

-

Affiliation

Tropical Medicine Department, Faculty of Medicine, Minia University Minia, Egypt

Email

dr.haythamabdlhamid@gmail.com

City

-

Orcid

-

First Name

Dalia

Last Name

Kotb

MiddleName

N

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt

Email

dalia.nabeel@mu.edu.eg

City

-

Orcid

-

Volume

5

Article Issue

3

Related Issue

49567

Issue Date

2024-08-01

Receive Date

2024-03-09

Publish Date

2024-08-01

Page Start

1,113

Page End

1,126

Print ISSN

2682-4132

Online ISSN

2682-4140

Link

https://mid.journals.ekb.eg/article_350005.html

Detail API

https://mid.journals.ekb.eg/service?article_code=350005

Order

22

Type

Original Article

Type Code

1,157

Publication Type

Journal

Publication Title

Microbes and Infectious Diseases

Publication Link

https://mid.journals.ekb.eg/

MainTitle

Virulence characterization of <i>Escherichia coli</i> sequence type 131 clone isolated from hospital-acquired and community-acquired urinary tract infections, Egypt

Details

Type

Article

Created At

25 Dec 2024