2009 Swine Flu Pandemic Infected 1 In Every 5 People

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Data gathered from 19 different countries reveals that the global swine flu pandemic which began in 2009 infected close to 20% of the population and almost 50% of all schoolchildren. The virus which originated in Mexico is thought to have killed close to 200,000.

http://www.medicalnewstoday.com/articles/255456.php