Swine Flu
Originating in Mexico in the spring of 2009, the swine flu was a strain of H1N1. The rest of the world became infected shortly after the initial discovery in Mexico. According to the CDC, it only took one year for the virus to hit a massive amount of people. Over 1.4 billion people across the globe were infected with the virus, and anywhere between 151,600 and 575,300 died from it.
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