E. coli bacteria. Coloured scanning electron micrograph (SEM) of Escherichia coli bacteria (green) taken from the small intestine of a child. E. coli

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E. coli bacteria. Coloured scanning electron micrograph (SEM) of Escherichia coli bacteria (green) taken from the small intestine of a child. E. coli are Gram-negative rod-shaped bacteria that are part of the normal flora of the human gut. However some strains, including this one, produce a toxin that causes severe diarrhoea and can be fatal, especially in the very young or elderly. Magnification: x5,700 when printed at 10 centimetres wide.

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Size: 2922px × 2190px
Photo credit: © STEPHANIE SCHULLER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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