Description

Strains of Escherichia coli (generally identified as E. coli) bacteria, and bacteria of the genus Yersinia, fasten themselves to the wall of the small intestine and use a needle-like apparatus to inject toxins into the tissue. These bacteria commonly come into the human body by way of the mouth. E. coli and Yersinia bacteria attack cells in the small intestine which absorb nutrients. They use adhesions such as intimin to stick to intestinal epithelial cells and to afterwards form tiny channels amongst the bacteria and the intestinal cells. In this way they are able to host diarrhea-causing toxins into the intestine.

http://www.sciencedaily.com/releases/2015/01/150114072746.htm

How E. coli Passes Safely Through Stomach Acid

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