Watch Invisible Killers Season 1 Episode 2 - Smallpox

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Invisible Killers Season 1 Episode 2
Smallpox tells the story of perhaps the greatest accomplishment of medical science, the complete eradication of the worst disease known to humankind, a scourge responsible for an estimated 500 million deaths in the 20th century alone.
First Aired: March 29, 2018 - 14 Minutes Runtime
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Watch Invisible Killers - Smallpox (s1 e2) Online - Watch online anytime: Stream, Download, Buy, Rent

Invisible Killers, Season 1 Episode 2, is available to watch free on Science Channel and stream on Science. You can also stream, download, buy, rent Invisible Killers on demand at Amazon Prime, Amazon, Hulu, Vudu, Discovery, Google Play, iTunes online.