Clue To Stopping Killer Viruses

Scientists believe they may have found a new way to fight diseases like Aids and leukaemia. Researchers in the United States say they have identified a chemical, which may be able to stop so-called retroviruses in their tracks. These viruses spread by permanently inserting their genetic material into healthy cells. Writing in the Proceedings of the National Academy of Sciences, they said the chemical may prevent this. Most retroviruses are difficult to treat not least because they permanently change the genetic make-up of cells.

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