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 is a lung infection that’s caused by bacteria, viruses, or fungi. It ranges from mild to severe. Some cases of pneumonia occur as a complication of another infection, like influenza or COVID ...

You can get pneumonia through bacterial, fungal, or viral infections. You can also get aspiration pneumonia, which is when you inhale food, or hospital-acquired pneumonia. To prevent pneumonia, get ...