Reference Terms
from Wikipedia, the free encyclopedia

Escherichia coli

Escherichia coli, usually abbreviated to E. coli, is one of the main species of bacteria that live in the lower intestines of warm-blooded animals, including birds and mammals.

They are necessary for the proper digestion of food and are part of the intestinal flora.

Its presence in groundwater is a common indicator of fecal contamination.

Note:   The above text is excerpted from the Wikipedia article "Escherichia coli", which has been released under the GNU Free Documentation License.
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