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Original cloned sheep develops arthritis

Jan. 4, 2002 at 1:34 PM

LONDON, Jan. 4 (UPI) -- Scientists said Friday that Dolly, the world's first cloned sheep, has developed arthritis and they were worried it could be the result of the cloning process. Professor Ian Wilmut, who led the team that created her, said "there is no way of knowing" whether cloning or coincidence was to blame.

Topics: Ian Wilmut