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The use of the Sabin vaccine in the United States at that time was deemed unnecessary due to the availability of the Salk vaccine. At that time, Sabin transferred the samples to test its effectiveness in Soviet territory. Donkey hello sweet cheeks poster. In January 1959, mass vaccination began in which 15 million children in different republics were vaccinated.
Soon, the incidence of polio has subsided. What about the Salk vaccine. It turns out that some people who have been vaccinated because it have polio. Ultimately, Sabin’s completed vaccine is most effective and by 1960 has been in more than 100 countries around the world. Donkey hello sweet cheeks poster. So, the first half of the 20th century recording both the Spanish flu pandemic and the fight against the deadliest virus in history, smallpox passed under the banner of the war against. To this day, the human race has won an almost complete victory over a large number of dangerous viral infections. But that doesn’t mean there is nothing left to threaten us.
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