article_snippet: Discovery raises the prospect of giving people drugs in the very earliest stages, when Discovery is easiest to treat, and even stopping the disease in Discovery tracks (file image)
article_snippet: Discovery raises the prospect of giving people drugs in the very earliest stages, when Discovery is easiest to treat, and even stopping the disease in Discovery tracks.
article_snippet: Scientists around the world believe the key to treatment will be to give the medicines as early as possible in the disease.
highlights_snippet: Discovery means people can be treated years before showing symptoms .
  