Flu prevention is essential to reduce the spread of the influenza virus. Key methods include getting the annual flu vaccine, which helps the body build immunity against the virus. Regular handwashing with soap and water, or using hand sanitizer, can also minimize the risk of infection. Staying away from sick individuals and avoiding crowded places during flu season are important strategies. Additionally, maintaining a healthy lifestyle through proper nutrition, exercise, and adequate sleep can strengthen the immune system, making it easier to fight off infections like the flu.