One day the guru told him that his mission was to eradicate smallpox.
FORBES: Magazine Article
A. Henderson, who led the effort to eradicate smallpox, have pointed out that we can develop new vaccines without the virus.
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He is best known for his efforts on behalf of the United Nations to eradicate smallpox (a video describing that task, and his plan to spot other pandemics, is available here).
Smallpox is also a killer of mind-boggling proportions: when the campaign to eradicate it began, in 1967, it was killing 2m people a year.
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