What is a lung infection without fluid in lungs?

Pneumonia is a lung infection that inflames the air sacs in one or both lungs. The air sacs fill with fluid or pus, causing cough, fever, chills, and difficulty breathing. Pneumonia can be caused by a variety of microorganisms, including bacteria, viruses, and fungi.

Bronchitis is an inflammation of the bronchi, which are the large airways that carry air to and from the lungs. Bronchitis can be caused by a variety of irritants, including viruses, bacteria, and allergens. Symptoms of bronchitis include cough, wheezing, and shortness of breath.

Pleuritis is an inflammation of the pleura, which is the thin membrane that lines the lungs and chest cavity. Pleuritis can be caused by a variety of factors, including infection, injury, and autoimmune disorders. Symptoms of pleuritis include chest pain, shortness of breath, and fever.

Atelectasis is the collapse of a lung or part of a lung. Atelectasis can be caused by a variety of factors, including obstruction of the airways, trauma, and surgery. Symptoms of atelectasis include shortness of breath, wheezing, and chest pain.

Pulmonary edema is a condition in which fluid accumulates in the lungs. Pulmonary edema can be caused by a variety of factors, including heart failure, kidney failure, and infection. Symptoms of pulmonary edema include shortness of breath, wheezing, and coughing up frothy pink or blood-tinged sputum.