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62-test

Farhad Key

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Completar Frases 62-testVersión en línea 62-test por Farhad Key 1 vaccination thus venom monks pus method carried which inoculation bovine vaccine inoculating consisted condition universalized immunize controversial smallpox According to the literature , the history of can be traced back to as early as the 7th century when the in India tried to themselves by drinking snake . The first vaccination was with human , a practice widely out in ancient India , Arabia , and China . This of vaccination of collecting from a patient suffering from mild form of smallpox virus infection and the sample to a healthy human , which later led to a minor infection . This method was first introduced in England by a Greek named E . Timoni . However , this method had a risk of spreading smallpox in the community and even worsening the health of the person who received the inoculation . While the use of human smallpox vaccine was . E . Fenner came up with smallpox vaccine in 1796 : this new method also faced controversy , but continued to be . Smallpox became a preventable disease by injecting pus extracted from a human infected with cowpox virus . Jenner named the substance " vaccine " after the Latin word " vacca " means " cow , " and the process of giving became " vaccination " .