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SV40 and Vaccine Contamination

Analysis by Dr. Joseph Mercola Fact Checked

Story at-a-glance

  • From 1955 to 1963, hundreds of millions of people worldwide — in North and South America, Canada, Europe, Asia and Africa — received inactivated and live oral polio vaccines that may have been contaminated with simian virus 40 (SV40), a monkey virus

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