There are two main kinds of pneumonia - viral and bacterial pneumonia.
Bacterial pneumonia is the most serious.
Pneumococcal pneumonia, which is a bacterial pneumonia that results from an infection of the lungs, is a serious illness that kills thousands of older people in the United States each year. People 65 years of age and older. People who have a chronic illness such as cardiovascular and pulmonary diseases, alcoholism, diabetes mellitus, or cirrhosis. People with a weak immune system due to illnesses such as AIDS, chronic renal failure, organ transplantation, Hodgkin's disease, lymphoma or multiple myeloma. The symptoms of pneumococcal pneumonia include high fever, cough with chest pain and mucus, shaking chills, wheezing or breathlessness, and chest pain that increases with breathing.