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  1. Health & Medicine

    Bypass surgery in elderly works fine

    Coronary bypass surgery works as well in people over age 75 as it does in people 15 years younger.

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  2. Bacteria, this spud’s for you

    A compound in potato extracts stops bacteria from sticking to their targeted cells.

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  3. Viral enzyme tackles strep throat

    An enzyme from viruses that chew up bacteria may be a new kind of antibiotic.

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  4. Pelvic infection tied to bacterial gene

    A newly discovered gene may explain why some gonorrheal infections turn even more serious.

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  5. Neural-learning ventures

    Sets of neurons may modify their activity in several ways to facilitate a basic type of learning.