Influenza is an infectious disease caused by the influenza virus. It’s a contagious disease that spreads around the United States every year and affects up to three million people every year, between October and May. The flu is an upper respiratory illness that affects the nose, throat, and lungs. It’s often confused with the common cold. According to WebMD there are three types of flu viruses: A, B, and C. Type A and B cause the annual influenza epidemics that have up to 20% of the population sniffling, aching, coughing, and running high fevers. Type C also causes flu; however, type C flu symptoms are much less severe (https://www.webmd.com/cold-and-flu/flu-guide/advanced-reading-types-of-flu-viruses#1). The influenza virus affects people
