SEASONAL FLU VIRUS: WHY VACCINES NEVER GO OUT OF STYLE

Who should get the seasonal flu vaccine? Why is the flu vaccine different each year? How does the flu vaccine protect us? The CDC has estimated that seasonal influenza or the flu is responsible for around 50,000 deaths worldwide each year. In 1918, the “Spanish flu” pandemic killed over 6,750,00 people in the U.S. and caused over 50 million deaths worldwide. The more recent 2009 pandemic flu resulted in over 200,00 deaths during its first year of circulation in the human population.