Jun 13, 2020 · Pneumonia — Learn about the symptoms, causes and treatment of this serious lung infection.

What is pneumonia? Pneumonia is an infection in your lungs caused by bacteria, viruses or fungi. Pneumonia causes your lung tissue to swell (inflammation) and can cause fluid or pus in your …

Jun 24, 2024 · What is pneumonia? Pneumonia is an infection of one or both lungs that triggers inflammation and causes the air sacs (alveoli) of the lung to fill with pus or liquid. Symptoms …

Many professional organizations have issued guidelines to manage and prevent pneumonia. Pneumonia is a lung infection that can be caused by many germs. Treatment and prevention …

The main types of pneumonia are bacterial, viral, and mycoplasma pneumonia. A cough that produces green, yellow, or bloody mucus is the most common symptom of pneumonia.

Dec 10, 2025 · Pneumonia is an infection in one or both of the lungs that may be caused by bacteria, viruses, or fungi. The infection causes the lungs' air sacs (alveoli) to become …

Dec 19, 2025 · Symptoms of pneumonia may vary, depending on the infection type and your risk factors, such as age and health conditions. Know when to seek help.

Mar 24, 2022 · Pneumonia is a lung infection that causes your air sacs to fill up with fluid or pus. Learn about the causes, risk factors, signs and symptoms, and treatment for pneumonia.

Jul 13, 2025 · The signs and symptoms of pneumonia include chest pain, difficulty breathing, and fatigue. Pneumonia can have overlapping symptoms with colds and flus but can be life …

Dec 8, 2023 · Pneumonia is an infection in one or both of the lungs. Symptoms of pneumonia vary to mild to severe. Read about the signs of pneumonia.