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Pneumocystis pneumonia (PCP), also known as Pneumocystis jirovecii pneumonia (PJP), is a form of pneumonia that is caused by the yeast-like fungus Pneumocystis jirovecii. [ 3 ] [ 4 ] Pneumocystis specimens are commonly found in the lungs of healthy people although it is usually not a cause for disease. [ 5 ]
Pneumocystis jirovecii (previously P. carinii) is a yeast-like fungus of the genus Pneumocystis. The causative organism of Pneumocystis pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. Prior to its discovery as a human-specific pathogen, P. jirovecii was known as P. carinii.
Pneumocystosis is a fungal infection that most often presents as Pneumocystis pneumonia in people with HIV/AIDS or poor immunity. [1] [7] It usually causes cough, difficulty breathing and fever, and can lead to respiratory failure. [4]
Pneumocystis carinii in tissue ... which in turn contains the genus Pneumocystis, causative agent of Pneumocystis pneumonia. ...
Since pneumonia can take a dangerous turn, it's important to know the earliest signs of it. Dr. Zweig says that, typically, pneumonia starts as a regular viral upper respiratory infection.
Pneumocystis pneumonia (PCP) (originally known as Pneumocystis carinii pneumonia) is relatively rare in healthy, immunocompetent people, but common among HIV-infected individuals. [15] It is caused by Pneumocystis jirovecii.
X-ray showing infection with Pneumocystis carinii pneumonia. The first known case of HIV in a human occurs in a Bantu man who died in the Congo. [6] [2] His blood sample, designated LEO70, which was taken for a study on Malaria and Glucose-6-phosphate dehydrogenase deficiency [7] later tested positive for HIV using multiple testing modalities. [8]
It can be used to identify the yeast-like fungus Pneumocystis jiroveci, [1] which causes a form of pneumonia called Pneumocystis pneumonia (PCP) or pneumocystosis. The cell walls of these organisms are outlined by the brown to black stain. The principle of GMS is the reduction of silver ions, which renders the fungal cell wall black.