Can COVID-19 cause lung injury?

While most people recover from pneumonia without any lasting lung damage, the pneumonia associated with COVID-19 can be severe. Even after the disease has passed, lung injury may result in breathing difficulties that might take months to improve.

What are the effects of COVID-19 on the lungs?

About 14% of COVID-19 cases are severe, with an infection that affects both lungs. As the swelling gets worse, your lungs fill with fluid and debris. You might also have more serious pneumonia. The air sacs fill with mucus, fluid, and other cells that are trying to fight the infection.