Virulence and phylogenetic analysis of enteric pathogenic Escherichia coli isolated from children with diarrhoea in South Africa

Alfinete, Ntando; Bolukaoto, John Y.; Heine, Lee; Potgieter, Natasha; Barnard, T.G.

doi:10.1016/j.ijid.2021.11.017

Cited by 24 publications

(16 citation statements)

References 52 publications

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“…The present study showed that 44.4% of the E. coli strains isolated in collared peccary faeces kept in WMU are carriers of genes that encode virulence factors of diarrheagenic pathotypes, mainly ETEC (lt and st) and EAEC (aap and AA probe), followed by STEC non-O157 (stx1 and stx2) and EPEC (bfpA and eaeA). The DEC virulence is mainly based on the ability to produce isoforms of the encoded protein related to infections in humans (Taghadosi et al, 2018;Angulo et al, 2021;Alfinete et al, 2022). These results are consistent with previous studies demonstrating that the wild collared peccary is a carrier of bacteria associated with humans and domestic animals.…”

Section: Discussionsupporting

confidence: 88%

Captive collared peccary carries ESBL-producing diarrheagenic Escherichia coli pathotypes

Balbuena

Cruz

Martínez

et al. 2022

Austral j. vet. sci.

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Section: Discussionsupporting

confidence: 88%

Captive collared peccary carries ESBL-producing diarrheagenic Escherichia coli pathotypes

Balbuena

Cruz

Martínez

et al. 2022

Austral j. vet. sci.

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“…The results of this study indicated that the highest rate of infection with E.coli was found in the age group(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) months by (48%), followed by the age group of (12-24) months by (28%), and the age group (36-48) by (14%). While the lowest rate of infection with E.coli was within the age group (24-36) months by(6%), and the age group (48-60) months by (4%), as shown in Table(2).…”

mentioning

confidence: 71%

Detection the Phylogenetic groups of E. coli that isolated from diarrheal in children under five years and study their relationship of common serotypes in Baghdad hospitals

2023

JPTCP

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The study included 50isolates of E.coli isolatesthat were obtained from (120) stool samples collected from children with diarrhea of both sexes who visited hospitals in Baghdad. E.coli serotypes were diagnosed according to serotyping method for different age groups of children under five years. The results were represented by (7) (14%) isolates of E.coli belonging to Anticoli 1 group, (10) (20%) isolates belonging to Anticoli 11 group, (5) (23%) isolates belonging to Anticoli 111 group and (22) (44%) isolates which included (2/22) (9%)belongs to serotypes O111, O78 by (2/22) (9%), and for each of the serotypes O25, O142, and O119 are (3/22) and by 14%, O55 (5/22) ) at 23% and O44 (4/22) by 18%. As for the rest of the isolates, no results were given, which is represented by (28) (56%) unknown isolates which were not classified for any of the serotypes. Moreover, the results showed that the highest percentage of diarrhea was in males at (56%), while in females it was(44%); in addition the highest percentage of infection with E. coli in males and females was within the age group (1-12) months by (48%), followed by the age group of (12-24) months by (28%), and then the age group (36-48) by 14%, while the lowest rate of E.coli infection in males and females found in the age group (24-36) months by (6%) followed by the age group (48-60) monthsby(4%).The results of the phylogenetic groups detected several groups includinggroup A (2/50, 4%), B1 (0/50, 0%), B2 (1/50, 2%), C (12/50, 24%), D (6/50,12%), F (3/50,6%), Clade1 (0%) and E (26/50, 52%) which is the predominant group.

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“…Many studies revealed that, the most prevalent diarrheagenic E. coli were ETEC, EPEC, EAEC, AIEC, EHEC/STEC and DAEC [14][15][16][17]. Concern phylogroups of EPEC, the results gathered from 18 studies for 433 EPEC isolates revealed that: B1 compile (39.3%), A(23.3%), B2(18.2%), D(8.5%), (6.2%, 3.5% and 0.9%) for E, C and F phylogroups respectively (Table 2) [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. ETEC phylogroups includes: B1(43.3%), A(28.2%), D(14%), B2(13.4%), C(0.6%), E(0.6%) and F(0.0%) (Table 3) [18, 23-25, 27, 28, 30, 31, 33, 35-37].…”

Section: Diarrheagenic E Coli (Dec) Phylotypesmentioning

confidence: 97%

Phylotypes and Pathotypes of Diarrheagenic Escherichia coli of Gastroenteritis

Abdulabbas¹,

Al-Khafaji²,

Abed³

et al. 2024

Antimicrobial Stewardship - New Insights

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Escherichia coli responsible for wide range of common bacterial infections, the frequent one is gastroenteritis. Bacterial gastroenteritis mainly attributed to diarrheagenic E. coli and accompanied by diarrhea and vomiting. Actually pathogenic E. coli can be classified according to the site of infection whether it be within intestine (called intestinal pathogenic E. coli InPEC) or cause infection outside intestine (called extraintestinal pathogenic E. coli ExPEC). They are assigned to 4 main phylogenetic groups: InPEC include A and B1 while ExPEC have B2 and D groups. Seven Pathotypes have been assigned: Enteropathogenic E. coli (EPEC), enterotoxigenic E. coli (ETEC), enterohemorrhagic (Shiga-toxin producing E. coli (EHEC/STEC), enteroaggregative E. coli (EAEC), diffusely adherent E. coli (DAEC), enteroinvasive E. coli (EIEC) and adherent invasive E. coli (AIEC). The patho-phylotyping of diarrheagenic E. coli interaction along with antibiotic resistance and biofilm formation capacity may be valuable insight to know real threat of this pathogen and this is tried to be covered with this chapter. The results revealed that the among DEC, EPEC and ETEC were assigned in high rate to B1 followed by A, B2, D, E, C and F while EAEC show different assignment: D followed by B2, A, B1, C, E and F. The other DEC pathotypes showed different styles.

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Virulence and phylogenetic analysis of enteric pathogenic Escherichia coli isolated from children with diarrhoea in South Africa

Cited by 24 publications

References 52 publications

Captive collared peccary carries ESBL-producing diarrheagenic Escherichia coli pathotypes

Captive collared peccary carries ESBL-producing diarrheagenic Escherichia coli pathotypes

Detection the Phylogenetic groups of E. coli that isolated from diarrheal in children under five years and study their relationship of common serotypes in Baghdad hospitals

Phylotypes and Pathotypes of Diarrheagenic Escherichia coli of Gastroenteritis

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