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Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing. A variety of organisms, including bacteria, viruses and fungi, can cause pneumonia.
What causes pneumonia? Pneumonia can develop when your immune system attacks an infection in the small sacs of your lung (alveoli). This causes your lungs to swell and leak fluids. Many bacteria, viruses and fungi can cause the infections that lead to pneumonia.
Pneumonia can be caused by a wide variety of bacteria, viruses and fungi in the air we breathe. Identifying the cause of your pneumonia can be an important step in getting the proper treatment. Bacteria. The most common type of bacterial pneumonia is called pneumococcal pneumonia.
Pneumonia is a lung infection that causes your air sacs to fill up with fluid or pus. Learn about the causes and risk factors for pneumonia.
Pneumonia may be defined as an infection of the lung characteristically involving the alveolar space. The presence of microorganisms in the alveolar space without an accompanying inflammatory response represents colonization and does not constitute pneumonia.
There are more than 30 different causes of pneumonia, and they’re grouped by the cause. 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.
Pneumonia is an inflammation of the air sacs in the lungs (alveoli) and the surrounding tissue. It often leads to a sudden high fever, the feeling that you are very unwell, a cough and shortness of breath. Because pneumonia is usually caused by bacteria, it can generally be treated effectively with antibiotics.
Pneumonia is acute inflammation of the lungs caused by infection. Initial diagnosis is usually based on chest x-ray and clinical findings.
Symptoms |. Diagnosis |. Treatment |. Prevention |. More Information. Pneumonia is an infection of the small air sacs of the lungs (alveoli) and the tissues around them. Pneumonia is one of the most common causes of death worldwide. The most common symptom of pneumonia is a cough that produces sputum (thick or discolored mucus).
Diagnosis. Chest X-ray showing pneumonia Enlarge image. Your doctor will start by asking about your medical history and doing a physical exam, including listening to your lungs with a stethoscope to check for abnormal bubbling or crackling sounds that suggest pneumonia. If pneumonia is suspected, your doctor may recommend the following tests: