Hello,
Bronchitis is the inflammation of the lining of the trachea, lungs and the rest of the respiratory tree, that
follows an attack of Viral Flu, upper respiratory infection or acute sinusitis. Cough is a common symptom,
often severe, dry or with phlegm, and may last 2 weeks or longer in chronic cases. Wheezing may be present.
Diagnosis is generally based on symptoms and a physical examination. Hope this helps. Take care. More details
at
http://www.emedicinehealth.com/bronchitis/article_em.htm