Pneumonia: Symptoms & Prevention

Category: Health

Pneumonia is an inflammation of the lungs that is usually caused by infection. A variety of organisms including fungi, bacteria, or viruses can cause pneumonia. Pneumonia can also be caused by inhaling irritants such as vomit, liquids, or chemicals. The air sacs may fill with fluid or pus, causing cough with phlegm or pus, fever, chills, and difficulty breathing.