<unk>  <unk>  refers to pneumonia (any of several lung diseases) contracted by a person outside of the healthcare system. In contrast, hospital-acquired pneumonia (HAP) is seen in patients who have recently visited a hospital or who live in long-term care facilities.<unk>  is common, affecting people of all ages, and its symptoms occur as a result of oxygen-absorbing areas of the lung (alveoli) filling with fluid. This inhibits lung function, causing dyspnea, fever, chest pains and cough.<unk> , the most common type of pneumonia, is a leading cause of illness and death worldwide. Its causes include bacteria, viruses, fungi and parasites.<unk>  is diagnosed by assessing symptoms, performing a physical examination, by x-ray or by sputum examination. Patients with<unk>  sometimes require hospitalization, and it is treated primarily with antibiotics, antipyretics and cough medicine. Some forms of<unk>  can be prevented by vaccination and by abstaining from tobacco products.
Community-acquired pneumonia
Hospital-acquired pneumonia
Pneumococcal pneumonia
Bacterial pneumonia
Fungal pneumonia
Idiopathic pneumonia syndrome
Ventilator-associated pneumonia
Hantavirus pulmonary syndrome