TIL The polio vaccine by Cutter Laboratories contained the real polio virus instead of inactivated one and created an epidemy of polio in US | Poal: Say what you want.

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TIL The polio vaccine by Cutter Laboratories contained the real polio virus instead of inactivated one and created an epidemy of polio in US (en.wikipedia.org)

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Most polio cases now involve street shitters as they carry disease.

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