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 …

Although more than 100 strains of infectious agents have been identified, only a few are responsible for the majority of cases.

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 …

Jun 24, 2024 · Pneumonia is an infection of the lungs caused by fungi, bacteria, or viruses. General symptoms include chest pain, fever, cough, and trouble breathing.

Aug 14, 2025 · Pneumonia is an infection that inflames your lungs' air sacs (alveoli). The air sacs may fill up with fluid or pus, causing symptoms such as a cough, fever, chills and trouble …

Oct 7, 2024 · Many different bacteria, fungi, and viruses can cause pneumonia (a lung infection).

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.

Nov 14, 2024 · Pneumonia is a lung infection most often caused by bacteria or a virus. It may be mild enough that you can recover at home, or serious enough to put you in a hospital.

Mar 24, 2022 · Learn about the causes, risk factors, signs and symptoms, and treatment for pneumonia.