" Bronchitis is a type of infection that can be caused by either bacteria or a virus. Bronchitis is painful, irritating, and disrupts your ability to perform at work, school, and home. Treating bronchitis is easier if it’s detected early and early detection is dependent on recognizing the symptoms. Bronchitis can affect people of all ages and it can occur any time of year, but it’s the most common during winter and early spring ...