华尔街日报：猪病毒来自其他疫苗！

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http://online.wsj.com/article/SB10001424052748704370704575228430256018328.html?KEYWORDS=Vaccine
DNA of Pig Viruses Found in Merck Vaccine
BY JENNIFER CORBETT DOOREN
WASHINGTON—The Food and Drug Administration said Thursday that fragments of two types of pig viruses were found in Merck & Co.'s Rotateq vaccine, but the agency didn't immediately say whether the vaccine should be avoided.
An FDA vaccine-advisory panel had already scheduled a meeting for Friday to discuss GlaxoSmithKline PLC's Rotarix vaccine. Both the Glaxo and Merck vaccines are designed to protect infants from a gastrointestinal illness caused by rotavirus and have been given to millions of babies. While rotavirus is rarely fatal in the U.S., it contributed to about 70,000 infant hospitalizations annually before Merck's vaccine was approved in ...