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  1. Health & Medicine

    Nice Shot: Hepatitis E vaccine passes critical test

    An experimental vaccine for hepatitis E has proved nearly 96 percent protective in a test in Nepalese soldiers.

    By Nathan Seppa
  2. Humans

    Letters from the March 3, 2007, issue of Science News

    Up, down, around I haven’t seen any reference to the similarity between the “morphing” wing (“Ahead of the Curve: Novel morphing wing may reduce aircraft’s fuel use,” SN: 12/23&30/06, p. 406) and the “warping” wing that the Wright brothers used on their gliders and powered aircraft. It seems we’ve come full circle in our quest […]

    By Science News
  3. Health & Medicine

    Cocoa compound increases brain blood flow

    Cocoa that retains compounds usually removed to soften the product's flavor can significantly improve blood flow to the brain.