What causes it? “Acute bronchitis is most commonly caused by inflammation of the airways due to infections such as the common cold, influenza, or Covid-19,” says Sharma.

Bronchitis is an infection of the tubes that lead to the lungs. It can be acute or chronic. Symptoms include a cough and wheezing. Smoking is a major risk factor. Find out more.

Bronchitis is a respiratory illness that occurs when the airways leading into your lungs get irritated, Nagata explains, which leads to the swelling and mucus buildup that causes difficulty breathing.

Bronchitis is inflammation of the bronchial tubes in the lungs. Pneumonia causes inflammation in the air sacs of the lungs. Both conditions share some similar symptoms, but there are also key ...