Getting the flu shot makes it less likely that you’re going to get the flu, and it makes it less likely that people in your family and community are going to get the flu.
There are many strains of the flu. Sometimes the vaccine doesn’t target all of the current strains, but it can protect you from other strains, reduce the chance of hospitalizations and death. Getting vaccinated every year is important to make sure you have immunity to the strains most likely to cause an outbreak.