scholarly journals Multi Locus VNTR (MLVA) Typing and Detection of the OI-122 Pathogenicity Island in Typical and Atypical Enteropathogenic Escherichia coli Isolated from Children with Acute Diarrhea

2019 ◽  
Vol 14 (3) ◽  
Author(s):  
Mojtaba Memariani ◽  
Shahin Najar-Peerayeh ◽  
Taghi Zahraei Salehi
Keyword(s):  
Escherichia Coli ◽  
Acute Diarrhea ◽  
Pathogenicity Island ◽  
Enteropathogenic Escherichia Coli ◽  
Mlva Typing

scholarly journals Co-ordination of pathogenicity island expression by the BipA GTPase in enteropathogenic Escherichia coli (EPEC)

2003 ◽  
Vol 48 (2) ◽  
pp. 507-521 ◽  
Author(s):  
Andrew J. Grant ◽  
Michele Farris ◽  
Peter Alefounder ◽  
Peter H. Williams ◽  
Martin J. Woodward ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Pathogenicity Island ◽  
Enteropathogenic Escherichia Coli

Distribution of espI among clinical enterohaemorrhagic and enteropathogenic Escherichia coli isolates

2004 ◽  
Vol 53 (11) ◽  
pp. 1145-1149 ◽  
Author(s):  
Rosanna Mundy ◽  
Claire Jenkins ◽  
Jun Yu ◽  
Henry Smith ◽  
Gad Frankel
Keyword(s):  
Escherichia Coli ◽  
Type Iii Secretion ◽  
Severe Disease ◽  
Pathogenicity Island ◽  
Effector Proteins ◽  
Effector Protein ◽  
Enteropathogenic Escherichia Coli ◽  
Type Iii Effector ◽  
Type Iii

Enterohaemorrhagic (EHEC) and enteropathogenic (EPEC) Escherichia coli are important diarrhoeagenic pathogens; infection is dependent on translocation of a number of type III effector proteins. Until recently all the known effectors were encoded on the LEE pathogenicity island, which also encodes the adhesin intimin and the type III secretion apparatus. Recently, a novel non-LEE effector protein, EspI/NleA, which is required for full virulence in vivo and is encoded on a prophage, was identified. The aim of this study was to determine the distribution of espI among clinical EHEC and EPEC isolates. espI was detected in 86 % and 53 % of LEE+ EHEC and EPEC strains, respectively. Moreover, the espI gene was more commonly found in patients suffering from a more severe disease.

scholarly journals Prevalence and Characteristics of the O122 Pathogenicity Island in Typical and Atypical Enteropathogenic Escherichia coli Strains

2010 ◽  
Vol 48 (4) ◽  
pp. 1452-1455 ◽  
Author(s):  
M. A. M. Vieira ◽  
F. A. Salvador ◽  
R. M. Silva ◽  
K. Irino ◽  
T. M. I. Vaz ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Pathogenicity Island ◽  
Enteropathogenic Escherichia Coli

scholarly journals Pathogenicity Island O-122 in enteropathogenic Escherichia coli strains is associated with diarrhea severity in children from Lima Peru

2016 ◽  
Vol 306 (4) ◽  
pp. 231-236 ◽  
Author(s):  
Erik H. Mercado ◽  
Cristian Piscoche ◽  
Carmen Contreras ◽  
David Durand ◽  
Maribel Riveros ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Pathogenicity Island ◽  
Enteropathogenic Escherichia Coli

scholarly journals Molecular and phenotypic typing of enteropathogenic Escherichia coli isolated in childhood acute diarrhea in Abuja, Nigeria

2017 ◽  
Vol 11 (07) ◽  
pp. 527-535 ◽  
Author(s):  
Casmir Ifeanyichukwu Cajetan Ifeanyi ◽  
Nkiruka Florence Ikeneche ◽  
Bassey Enya Bassey ◽  
Stefano Morabito ◽  
Caterina Graziani ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Acute Diarrhea ◽  
Antimicrobial Agents ◽  
Virulence Gene ◽  
Enteropathogenic Escherichia Coli ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Typical Epec ◽  
Marked Resistance

Introduction: Enteropathogenic Escherichia coli (EPEC) causes infectious diarrhea among children in developing countries. However, in Nigeria, due to limited laboratory resources, the genetic diversity of its virulence factors, which include intimin subtypes, remains undefined. Methodology: EPEC isolates from diarrheic children 60 months of age and younger in Abuja, Nigeria, were analyzed. Polymerase chain reaction (PCR) for EPEC virulence gene, Hep-2 cell adherence, and serotyping were performed. EPEC strains were further subtyped by PCR for the identification of intimin subtype genes α (alpha), β (beta), γ1 (gamma-1), and έ (epsilon). Antibiotic resistance and extended-spectrum beta-lactamase (ESBL) production was determined by Clinical and Laboratory Standards Institute guidelines. Results: Overall, 18 (4.5%) out of 400 children with acute diarrhea had EPEC infection.  Typical EPEC (tEPEC) strains were detected in 14 (3.5%), whereas 4 (1.1%) were atypical EPEC (aEPEC). A total of 15 (83.3%) of the EPEC isolated belonged to β intimin subtype gene, while the remaining 3 EPEC isolates possessed the intimin έ subtype. No α and γ intimin subtypes were detected. Traditional EPEC serotypes O114:H14 were detected only in tEPEC strains. Marked resistance to β-lactam agents were observed but no ESBL-producing tEPEC or aEPEC was detected. Conclusions: This is the first report of intimin subtype genes in Abuja, Nigeria. EPEC isolates of diverse serotypes resistant to β-lactam antimicrobial agents were observed. These data will be useful in facilitating the characterization of intimin variants of EPEC and some Shiga toxin-producing E. coli (STEC) in humans and other animal species.

scholarly journals Draft Genome Sequence of Escherichia albertii Strain Mex-12/320a, Isolated from an Infant with Diarrhea and Harboring Virulence Genes Associated with Diarrheagenic Strains of Enteropathogenic Escherichia coli

2019 ◽  
Vol 8 (27) ◽  
Author(s):  
Samantha Maldonado-Puga ◽  
Mario Meza-Segura ◽  
Adriana Becerra ◽  
Mussaret B. Zaidi ◽  
Teresa Estrada-Garcia
Keyword(s):  
Escherichia Coli ◽  
Genome Sequence ◽  
Acute Diarrhea ◽  
Virulence Genes ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
Enteropathogenic Escherichia Coli ◽  
Content Type ◽  
Pathogenic Island

ABSTRACT Escherichia albertii is an emerging human enteropathogen. We report the draft genome sequence of E. albertii strain Mex-12/320a, isolated from an infant with diarrhea. The presence of the pathogenic island O122/IE6 and the nleA gene, previously found in diarrheagenic enteropathogenic Escherichia coli strains, suggests that E. albertii may cause acute diarrhea.

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