Pig Virus DNA Found In Merck & Co., Inc. Rotavirus Vaccine; FDA Panel To Weigh Merck, GlaxoSmithKline Vaccines Friday

WASHINGTON, May 6 (Reuters) - Pieces of DNA from a pig virus were found in Merck & Co Inc's (MRK.N) vaccine against a diarrhea-causing infection, but U.S. health officials said on Thursday there was no evidence of a risk to people.

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