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let’s not forget: Smallpox (1908). Eradicated thanks to marvels of vaccinations — Lindsey Fitzharris (@DrLindseyFitz)
Smallpox (1908). Eradicated thanks to marvels of vaccinations. cc @JennyMcCarthy. pic.twitter.com/2McEnDj98v — Lindsey Fitzharris (@DrLindseyFitz) November 17, 2014