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  1. Health & Medicine

    Dengue virus found in donated blood

    Scientists have discovered that 12 units of blood donated in Puerto Rico in late 2005 contained the dengue virus.

    By Nathan Seppa
  2. Health & Medicine

    Sleeping sickness pill may work as well as injections

    The first oral drug for sleeping sickness is showing effectiveness in a trial in central Africa.

    By Nathan Seppa
  3. Health & Medicine

    Bomb craters mean trouble for islanders

    A skin infection in people living on the Pacific island of Satowan stems from swimming in ponds formed from World War II bomb craters there.

    By Nathan Seppa
  4. Health & Medicine

    Patch guards against Montezuma’s revenge

    A patch worn on the skin delivers a vaccine against a form of Escherichia coli that causes traveler's diarrhea.