Understanding Pneumonia: A Guide to Symptoms, Causes, and Treatment
Pneumonia is a lung infection that touches millions of people each year. It develops when the air sacs in one or both lungs become irritated. This swelling {can{ be caused by a variety of factors, including bacteria, viruses, and fungi. Symptoms of pneumonia vary from person to person, but common signs include cough, body aches, weakness, and ches