Oleh: Thalia Kaylyn Averil Pneumonia is an infection that occurs in the lungs resulting in a buildup of fluid or pus in the alveoli, namely the air sacs in the lungs. This infection can affect one or both lungs. Pneumonia can be caused by viruses, bacteria, fungi or parasites. For pneumonia caused by viruses, the … Let’s find out more about Pneumonia!




