<i>Shigella</i>Types Encountered in the Mediterranean Area

Ewing, W. H.; Gravatti, J. L.

doi:10.1128/jb.53.2.191-195.1947

Cited by 29 publications

(4 citation statements)

References 13 publications

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“…The incidence of S. boydii serotypes in relation to total numbers of ShigeUa cultures isolated during studies in shigellosis in Egypt was comparable to that found among U. S. and Australian miilitary personnel in North Africa and the Middle East during the last war (Ewing and Gravatti, 1947;Heinemann, 1945;Hone et al, 1942) but was greater than that found among British troops (Boyd, 1946;Fairley and Boyd, 1943). Numbers of individual serotypes recovered were insufficient to establish relative type distribution, but, in comparison with the findings of investigators cited above, it was apparent that type incidence varied considerably from one period of time to another.…”

Section: Discussionsupporting

confidence: 52%

SHIGELLA BOYDIISEROTYPES IN EGYPT

Floyd

1956

J Bacteriol

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Section: Discussionsupporting

confidence: 52%

SHIGELLA BOYDIISEROTYPES IN EGYPT

Floyd

1956

J Bacteriol

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“…In developed countries, EIEC-related infections are mainly travelers' diarrheal cases in people with recent travel history to endemic regions [160]. The first EIEC strain belonging to serotype O124 was reported in 1947 [161]. In the later years, some of the bacterial species implicated in dysentery that were previously classified as Shigella were renamed as EIEC [162].…”

Section: Entero-invasive E Coli (Eiec) 61 An Overview Of Eiecmentioning

confidence: 99%

The Biology and the Evolutionary Dynamics of Diarrheagenic Escherichia coli Pathotypes

Lawal¹,

Parreira²,

Goodridge³

2023

Escherichia Coli - Old and New Insights

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Escherichia coli is a commensal of the gastrointestinal tract of humans and animals, and a leading cause of gastroenteritis, bloodstream, and urinary tract infection, among others. Pathogenic E. coli causing diarrhea is delineated into six different types (pathotypes) based on the type of infection they cause. While these pathotypes have similar mechanisms to colonize the intestinal epithelial layers and cause diseases, they differ in their capacity to acquire virulence, resistance determinants, and other accessory genes essential for niche adaptation. The advent of whole-genome sequencing technologies has greatly enhanced our understanding of the physiology, emergence, and global spread of multidrug-resistant and pathogenic clones of E. coli. In this chapter, we provided a snapshot of the resistome and virulome, as well as their contributions to the ecological adaptation, evolution, and dissemination of E. coli pathotypes.

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“…The first report of an EIEC strain dates back at 1947 ( Ewing and Gravatti, 1947 ). At that time, it was defined as “paracolon bacillus” but the strain was later identified as an O124 E. coli .…”

Section: Epidemiology Of Enteroinvasive E Coli (Ementioning

confidence: 99%

The Intriguing Evolutionary Journey of Enteroinvasive E. coli (EIEC) toward Pathogenicity

et al. 2017

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Among the intestinal pathogenic Escherichia coli, enteroinvasive E. coli (EIEC) are a group of intracellular pathogens able to enter epithelial cells of colon, multiplicate within them, and move between adjacent cells with a mechanism similar to Shigella, the ethiological agent of bacillary dysentery. Despite EIEC belong to the same pathotype of Shigella, they neither have the full set of traits that define Shigella nor have undergone the extensive gene decay observed in Shigella. Molecular analysis confirms that EIEC are widely distributed among E. coli phylogenetic groups and correspond to bioserotypes found in many E. coli serogroups. Like Shigella, also in EIEC the critical event toward a pathogenic life-style consisted in the acquisition by horizontal gene transfer of a large F-type plasmid (pINV) containing the genes required for invasion, intracellular survival, and spreading through the intestinal mucosa. In Shigella, the ample gain in virulence determinants has been counteracted by a substantial loss of functions that, although important for the survival in the environment, are redundant or deleterious for the life inside the host. The pathoadaptation process that has led Shigella to modify its metabolic profile and increase its pathogenic potential is still in infancy in EIEC, although maintenance of some features typical of E. coli might favor their emerging relevance as intestinal pathogens worldwide, as documented by recent outbreaks in industrialized countries. In this review, we will discuss the evolution of EIEC toward Shigella-like invasive forms going through the epidemiology, including the emergence of new virulent strains, their genome organization, and the complex interactions they establish with the host.

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ShigellaTypes Encountered in the Mediterranean Area

Cited by 29 publications

References 13 publications

SHIGELLA BOYDIISEROTYPES IN EGYPT

SHIGELLA BOYDIISEROTYPES IN EGYPT

The Biology and the Evolutionary Dynamics of Diarrheagenic Escherichia coli Pathotypes

The Intriguing Evolutionary Journey of Enteroinvasive E. coli (EIEC) toward Pathogenicity

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