Pneumonia is a common lung infection that inflames the air sacs in one or both lungs. These areas may fill with pus, causing chest pain. Many bacteria, viruses, and fungi can cause pneumonia. Symptoms differ depending on the source of the infection and the person's overall health. Common symptoms involve fever, shivering, fatigue, trouble inhaling

Pneumonia is a/happens to be/presents as an infection that inflames the air sacs in one or both lungs. These air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, difficulty breathing, and sharp pains in the chest. Pneumonia can be caused by a variety of organisms, including bacteria, viruses, and