Pneumonia typically occurs when a person acquires a viral, bacterial, or fungal lung infection. A cough is a common symptom of pneumonia. However, a person can have the condition without a cough.

Pneumonia Symptoms At Night: Pneumonia is a serious inflammatory lung condition marked by infection in the alveoli, the tiny air sacs essential for breathing. Different pathogens can cause this ...

Pneumonia is a lung infection that can range from mild to so serious that you have to go to the hospital. It happens when an infection causes air sacs in your lungs (the alveoli) and tubes in your ...