TThe best way to prevent seasonal flu is to get vaccinated each year

The best way to prevent seasonal flu is to get vaccinated each year, but good health habits like covering your cough and washing your hands often can help you to stop spreading the germs and prevent respiratory illnesses like the flu. There also are flu antiviral drugs that can be used to treat and prevent flu.
Avoid close contact
Stay home when you are sick
Cover your mouth and nose
Clean your hands
Avoid touching your eyes, nose or mouth
Practice other good health habits.