Influenza is caused by one of the influenza viruses and infects the airways of the nose and throat. Viruses spread from person to person through the air and can be a bigger problem indoors during colder months. Getting an annual flu shot is the best way to prevent influenza. While a good diet, vitamins, and physical activity can contribute to general health, they cannot completely protect against the influenza virus. The vaccine is very effective in preventing influenza, book your appointment today!