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    Katherine Harmon

    Scientific American
    cholera bacteria
    Can a Vaccine Cure Haiti's Cholera?

    Two years after the earthquake, debate over the use of a cholera vaccine in Haiti rages.

    • Professor Stephen Hawking speaks about "Why We Should Go into Space" for the NASA Lecture Series, April 21, 2008.
      How Stephen Hawking Has Beaten the Odds with ALS

      An expert on Lou Gehrig's disease explains what we know about this debilitating condition and how Hawking has beaten the odds.

      By Katherine Harmon Published 8 January 12

    • illustration of a virus in the bloodstream
      Can Male Circumcision Stem the AIDS Epidemic?

      The practice is gaining favor to prevent HIV's spread.

      By Katherine Harmon Published 2 December 11

    • Terrorists attacked the World Trade Center and the Pentagon on Sept. 11, 2001
      How Young Children Learn about Terrorism and 9/11

      What have we learned about the way children understand and process major events -- even if they themselves were not alive to have experienced them?

      By Katherine Harmon Published 11 September 11

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