27 фев 1979 г. - Eradication of smallpox

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Smallpox is the first eradicated disease in human history. The last natural case was found in 1977. WHO declared the success of eradication in 1980. Now only two last remnants of the virus that causes smallpox are in government laboratories in the United States and Russia.
More on smallpox: http://apublichealthblog.xiaobinzhou.agnesscott.org/a-history-of-global-health/eradicate-or-not-the-ultimate-question-for-infectious-diseases-part-1/

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