"Report, p 376: "… human fetal tissue has never been used to make the polio vaccine." Fact: Virologists at the Karolinska Institute in Sweden used fetal cells to propagate a polio vaccine in the mid-1950s; it was given to some 2000 schoolchildren. In 1967 and 1968, Yugoslavia conducted a mass polio vaccination campaign using polio virus propagated in WI-38 cells; Sweden and Switzerland had already run trials of the same vaccine. In the early 1970s, Pfizer launched a polio vaccine propagated in WI-38 cells in the United States. And the French vaccinemaker Sanofi Pasteur uses MRC-5 cells to make polio vaccine to this day."