Influenza (flu) is a serious disease that can make you sick for a week or longer with coughing, fever, aching and more. It can lead to pneumonia and make existing health problems worse - like diabetes, asthma and heart disease.
Getting a flu shot is the best way to protect yourself from the flu. It also keeps you from bringing the virus home or to work to work and infecting others. There are some misconceptions about flu shots.