SPRINGER MEDIZIN / SCIENCE PHOTO LIBRARY SPRINGER MEDIZIN / SCIENCE PHOTO LIBRARY
EHEC E. coli bacteria. Computer artwork of a enterohaemorrhagic Escherichia coli (EHEC) bacteria in the human gut. E. coli bacteria are a normal part of the intestinal flora in humans and other animals, where they aid digestion. However, some strains, such as EHEC, can produce dangerous toxins that lead to severe illness, or even death. Normal strains can also produce infections in those with weakened immune systems.
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