Recent updates on outbreaks of shiga toxin-producing Escherichia coli and its potential reservoirs

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Title
Recent updates on outbreaks of shiga toxin-producing Escherichia coli and its potential reservoirs
Author(s)
Jun Seob Kim; Moo-Seung Lee; Ji Hyung Kim
Bibliographic Citation
Frontiers in Cellular and Infection Microbiology, vol. 10, pp. 273-273
Publication Year
2020
Abstract
Following infection with certain strains of Shiga toxin-producing Escherichia coli (STEC), particularly enterohemorrhagic ones, patients are at elevated risk for developing life-threatening extraintestinal complications, such as acute renal failure. Hence, these bacteria represent a public health concern in both developed and developing countries. Shiga toxins (Stxs) expressed by STEC are highly cytotoxic class II ribosome-inactivating proteins and primary virulence factors responsible for major clinical signs of Stx-mediated pathogenesis, including bloody diarrhea, hemolytic uremic syndrome (HUS), and neurological complications. Ruminant animals are thought to serve as critical environmental reservoirs of Stx-producing Escherichia coli (STEC), but other emerging or arising reservoirs of the toxin-producing bacteria have been overlooked. In particular, a number of new animal species from wildlife and aquaculture industries have recently been identified as unexpected reservoir or spillover hosts of STEC. Here, we summarize recent findings about reservoirs of STEC and review outbreaks of these bacteria both within and outside the United States. A better understanding of environmental transmission to humans will facilitate the development of novel strategies for preventing zoonotic STEC infection.
Keyword
Shiga toxin-producing Escherichia coliShiga toxinSTEC reservoirHUSenvironmental transmission
ISSN
2235-2988
Publisher
Frontiers Media Sa
DOI
http://dx.doi.org/10.3389/fcimb.2020.00273
Type
Article
Appears in Collections:
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
Division of Research on National Challenges > Environmental diseases research center > 1. Journal Articles
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