News
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Health & MedicinePoliovirus slaughters brain tumors in mice
Scientists have altered a live polio virus, inducing it to target and kill brain tumor cells without causing polio.
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ChemistryDesigner surface proves deadly to bacteria
Researchers have made a surface coating that kills bacteria on contact in a novel way.
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Health & MedicineAntibiotic resistance is coming to dinner
Foods tainted with bacteria that antibiotics don't kill are a recipe for more serious—even lethal—infections.
By Janet Raloff -
Look on the bright side and survive longer
People who, as young adults, describe their lives using a variety of terms for positive emotions live substantially longer than those who express little positive emotion, according to a long-term study of Catholic nuns.