<human>: I've heard that if I get a flu shot, I won't get the flu. Is this true?
<bot>: It is possible, but not certain. Vaccines are designed to help protect against specific diseases by teaching your body’s immune system how to fight off infection. The flu vaccine is designed to help prevent you from getting the influenza virus, which causes the flu. However, there are other viruses that can cause similar symptoms and may be more common in your area than the flu. So while it's likely that getting the flu shot will help protect you from the flu, it might not be 100% effective.