<unk>  is a self-limited lower respiratory tract infection that is more common in young children and the elderly, especially during cold seasons. Viruses, especially influenza, are the most common causative agents. Symptoms include: cough, sputum production and wheezing as well as constitutional symptoms. It must be differentiated from pneumonia, asthma, and GERD. Reassurance and symptomatic medications are mainstays of<unk> .<unk>  may be prevented by hand hygiene, vaccination, and environmental control. Smoking cessation plays a great role in reducing the course of the disease.
Acute bronchitis
Chronic bronchitis
Atypical pneumonia
Croup
Adult bronchiolitis
Bacterial pneumonia
Bronchiectasis
Viral pneumonia