WASHINGTON (Reuters) – U.S. health regulators said on Wednesday they have identified a contaminant found in batches of Baxter International Inc's blood-thinner heparin that were linked to serious reactions and deaths.

Food and Drug Administration officials said they are trying to determine whether the chemical — over-sulfated chondroitin sulfate — was purposely or inadvertently added during manufacturing in China.

By Lisa Richwine
19 March 2008

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