Pneumonia is a common lung infection that inflames the alveoli in one or both lungs. These areas may fill with pus, causing difficulty breathing. Various bacteria, viruses, and fungi can cause pneumonia. Symptoms differ depending on the cause of the infection and the person's overall health. Common symptoms involve fever, shivering, fatigue, diffi

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 chest pain. Pneumonia can be caused by a variety of organisms, including bacteria, viruses, and fungi. In mo