The 1918 influenza pandemic (Spanish Flu) was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. GRAB YOUR COPY NOW.. to learn more on how it was tackled and its impact on the economy and lesson one can learn to tackle the present PANDEMIC....GET YOURS NOW By clicking BUY NOW..