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A new study of more than 50 samples of Vibrio cholerae isolated from both patients and the environment demonstrates the diversity and resourcefulness of the organism. In the environment, the cholera bacterium is commonly found attached to chitin, a complex sugar used by aquatic creatures such as crabs and zooplankton to form protective shells. In the wild, most strains of cholera can degrade the shells for use as food, and the new study showed how the presence of chitin can signal the bacteria - which have receptors for the material - to produce behaviors very different from those seen in human disease. [Source: Georgia Tech]
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