Enterotoxigenic Escherichia coli: Orchestrated host engagement
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Updated: May 9, 2026

Detection of Enterohemorrhagic Escherichia Coli Colonization in Murine Host by Non-invasive In Vivo Bioluminescence System
Published on: April 9, 2018
James M Fleckenstein1, George M Munson2, David A Rasko3
1Department of Medicine; Washington University School of Medicine; St. Louis, MO USA; Medicine Service; Veterans Affairs Medical Center; St. Louis, MO USA.
Abstract:
The enterotoxigenic Escherichia coli are a pervasive cause of serious diarrheal illness in developing countries. Presently, there is no vaccine to prevent these infections, and many features of the basic pathogenesis of these organisms remain poorly understood. Until very recently most pathogenesis studies had focused almost exclusively on a small subset of known "classical" virulence genes, namely fimbrial colonization factors and the heat-labile (LT) and heat stable (ST) enterotoxins. However, recent investigations of pathogen-host interactions reveal a surprisingly complex and intricately orchestrated engagement involving the interplay of classical and "novel" virulence genes, as well as participation of genes highly conserved in the E. coli species. These studies may inform further rational approaches to vaccine development for these important pathogens.
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