👉 Pneumonic is a medical term referring to an infection or inflammation of the lungs. It can be caused by a variety of factors, including bacteria, viruses, fungi, and parasitic infections. Pneumonia is one of the most common respiratory diseases that affects millions of people worldwide each year. In pneumonia, the immune system responds to the infection with inflammation and tissue damage in the lung tissues, leading to symptoms such as coughing, shortness of breath, fever, chest pain,