An irritating cough that just won’t go away is easy to dismiss as a mild inconvenience like a cold or flu, but in some cases, it can be a sign of different conditions. “One of the most common causes ...

Bronchitis infects the bronchial tubes, while pneumonia infects the alveoli. Bronchitis is usually viral and doesn't need antibiotics, but pneumonia may need antibiotics if bacterial. Pneumonia is ...