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A polio vaccine introduced in the 1930s could paralyze kids. https://en.m.wikipedia.org/wiki/Polio_vaccine https://en.m.wikipedia.org/wiki/Polio_vaccine
by vharuck 6y ago
A polio vaccine introduced in the 1930s could paralyze kids.
https://en.m.wikipedia.org/wiki/Polio_vaccine https://en.m.wikipedia.org/wiki/Polio_vaccine