Pneumonia is a common lung infection that inflames the air sacs in one or both lungs. These sacs may fill with fluid, causing chest pain. Numerous bacteria, viruses, and fungi can cause pneumonia. Symptoms vary depending on the origin of the infection and an individual's overall health. Common symptoms include fever, chills, fatigue, difficulty br

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, breathing problems, and sharp pains in the chest. Pneumonia can be caused by a variety of organisms, including bacteria, viruses, and f