News

  1. Health & Medicine

    Death of a theory

    Three separate analyses of oral polio vaccine used in the 1950s in Africa deflate the theory that such a vaccine could have ignited the AIDS epidemic by containing virus-infected chimpanzee cells.

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  2. Health & Medicine

    Gene therapy cures blindness in dogs

    Gene therapy to replace a defective RPE65 gene succeeds in bringing sight to three blind dogs, suggesting such therapy might reverse Leber congenital amauosis, a rare condition in which children are blind from birth.

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  3. Health & Medicine

    New anthrax treatment works in rats

    By distorting a protein in the toxin that makes the anthrax bacterium deadly, scientists have discovered a promising way to treat the disease and possibly even to prevent it with a vaccine.