Photo: Nobel Prize in Medicine Goes to Two U.S. Scientists

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Today the Nobel Assembly at the Karolinska Institute in Stockholm, Sweden, announced that biologists Andrew Z. Fire (left) and Craig C. Mello will split the 2006 Nobel Prize in Physiology or Medicine for their work on RNA interference, a mechanism cells use to silence certain genes. The research may lead to new treatments for cancer, AIDS, infections, and other diseases.

Images courtesy Stanford (left); University of Massachusetts School of Medicine (right)

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