Ontario researchers say they have discovered how bacteria become resistant to antibiotics, a finding they say could help combat the growing problem.
Ontario Researchers Discover How Bacteria Become Resistant to Antibiotics
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An EHEC bacteria is visible in Berlin, Germany on May 30, 2011. (Courtesay Manfred Rohde, Helmholtz-Zentrum fuer Infektionsforschung (HZI)/Getty Images)
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