The average adult experiences between 2 to 5 upper respiratory infections (URTIs) a year, which is a leading cause of physician visits and missed days of work. URTIs are one of the most common medical conditions affecting athletes. Athletes are often in close contact with others in team locker rooms, at practice, or during travel, all of which increase their risk of infection. In addition, the stress of training, traveling, competition, and environmental exposure suppresses the athlete’s immune system.