The single best way to prevent seasonal flu is to get vaccinated each year. You can also practice good health habits all year round to stop the spread of germs and prevent respiratory illnesses.
Avoid Close Contact.
Avoid close contact with people who are sick. When you are sick, keep your distance from others to protect them from getting sick too.
Stay Home When You Are Sick.
If possible, stay home from work, school, and errands when you are sick. This will help prevent spreading your illness to others.
Cover Your Mouth And Nose.
Cover your mouth and nose with a tissue when coughing or sneezing. This may prevent those around you from getting sick.
Clean Your Hands.
Washing your hands often will help protect you from germs. If soap and water are not available, use an alcohol-based hand rub.
Avoid Touching Your Eyes, Nose, Or Mouth.
Germs are often spread when a person touches something that is contaminated with germs and then touches his or her eyes, nose, or mouth.
Practice Other Good Health Habits.
Clean and disinfect frequently touched surfaces at home, work, or school, especially when someone is ill. Get plenty of sleep, be physically active, manage your stress, drink plenty of fluids, and eat nutritious food.
Source: U.S. Department of Health and Human Services Centers for Disease Control and Prevention