Here's what causes bronchitis, how the illness usually spreads and how you can treat symptoms if it affects you or a loved one.

Acute (short-term) bronchitis develops slowly over a few days and may resolve on its own within 2 weeks. During this time, symptoms usually ease gradually until they subside completely.

Bronchitis refers to inflammation in the bronchial tubes. It can be acute (short-term) and develop in response to an illness like a respiratory infection. Bronchitis can also be chronic ...

and the data features the usual lineup of suspects — acute bronchitis, influenza, pneumonia, and respiratory syncytial virus (RSV). This year has also seen a surge in norovirus, a highly contagious ...