Bronchitis - Wikipedia, the free encyclopediaBronchitis is an inflammation of the bronchi. More specifically, it may refer to: Acute bronchitis, caused by viruses or bacteria and lasting several days or weeks; Chronic ... Acute bronchitis - Wikipedia, the free encyclopediaBronchitis is an inflammation of the large bronchi (medium-sized airways) in the lungs. It can progress to pneumonia. Acute bronchitis is usually caused by viruses or bacteria and ... MedlinePlus: BronchitisBronchitis ... Bronchitis is an inflammation of the main air passages (bronchi) to your lungs. BronchitisArticle from TeensHealth explains this respiratory disease. Includes symptoms, causes, what doctors do, and smoking and bronchitis. BronchitisBronchitis. Also listed as: Respiratory infection - bronchitis. Signs and Symptoms; Causes; Diagnosis; Preventive Care; Treatment Approach; Supporting Research |