One million U.S. children, and about 30 million worldwide, have already received GlaxoSmithKline’s Rotarix vaccine. Now a research team has discovered it is contaminated with “a substantial amount” of DNA from a pig virus.
What is pig virus DNA doing in a vaccine intended to prevent rotavirus disease, which causes severe diarrhea and dehydration?
It’s anybody’s guess, although CNN reported that GlaxoSmitthKline detected the substance in the cell bank and the seed used to make the vaccine, “suggesting its presence from the early stages of vaccine development".'
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