Only two diseases in the world have ever been declared "eradicated." And of those two, only one affects humans. That disease is smallpox. Trace explains how the smallpox eradication effort worked, and how it might be applied to other illnesses.
via Discovery News http://news.discovery.com/human/videos/how-did-we-kill-smallpox-video.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/human/videos/how-did-we-kill-smallpox-video.htm#mkcpgn=rssnws1
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