<i>E. coli</i> (IMAGE)

University of California - San Diego

<i>E. coli</i>

Caption

Escherichia coli bacteria, like these in a false-color scanning electron micrograph by Thomas Deerinck at UC San Diego’s National Center for Microscopy and Imaging Research, cause a variety of often life-threatening conditions, particularly among the young. Varki and colleagues suggest a genetic change 100,000 or so years ago conferred improved protection from these microbes, and likely altered human evolutionary development.

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Thomas Deerinck at UC San Diego’s National Center for Microscopy and Imaging Research

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