Like a Game of �Clue,� Genomics Tracks Outbreak, Revealing Evolution in Action

Was it Colonel Mustard in the library with a lead pipe? Or Mrs. Peacock in the ballroom with a candlestick? No, it was deadly, drug-resistant Klebsiella pneumoniae from a 43-year-old woman spreading to 17 other patients, killing 6 of them and sickening 5 others, at the National Institutes of Health�s (NIH) Clinical Center in June 2011.

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