b). Smallpox was a frightened disease responsible of the deaths of hundreds of millions of people down an ages. Those whose it did not kill were often leave blinded or scarred. On 1796, Edward Jenner, an English doctor, develop the first vaccine that will prevent smallpox. (a) ( (c)... (d) (e)... (p. (8 ch
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Smallpox was an infectious disease caused by one of two virus variants, Variola major and Variola minor. Those whose it did not kill were often left blinded or scarred. In 1796, Edward Jenner, an English doctor, develop the first vaccine. The basis for vaccination began in 1796 when the English doctor Edward Jenner noticed that milkmaids who had gotten cowpox were protected from smallpox. Jenner also knew about variolation and guessed that exposure to cowpox could be used to protect against smallpox
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