Pneumonia is an infection in your lungs caused by bacteria, fungi or viruses. It causes your lung tissue to swell resulting in fluid or pus in the lungs. This can make it very difficult to breathe. Bacterial pneumonia is treated through antibiotics. It requires a hospital stay. Viral pneumonia has symptoms similar to the flu and usually resolves on its own. Pneumonia developing in both lungs is called double pneumonia. In this blog, we’ll ...