PNEUMOCYSTIS CARINII PNEUMONIA

Pneumocystis pneumonia (PCP) is a form of pneumonia caused by the yeast-like fungal Pneumocystis jirovecii (Jirovecii is pronounced "yee row vet zee eye"). The causal agent was originally described as a protozoan and spelled P. jiroveci and prior to then was classified as a form of Pneumocystis carinii, a name still in common usage. These names are discussed below. As a result, Pneumocystis pneumonia (PCP) has also been known as Pneumocystis jiroveci[i] pneumonia and as Pneumocystis carinii pneumonia, as is also explained below.
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Pneumocystis carinii pneumonia A lung infection that affects people with weakened immune systems, such as people with AIDS or people taking [more]Pneumocystis carinii pneumonia - Community and Resources

Noun
1. pneumonia occurring in infants or in persons with impaired immune systems (as AIDS victims)
(synonym) pneumocytosis, pneumocystis pneumonia, interstitial plasma cell pneumonia
(hypernym) pneumonia

A parasitic infection of the lungs that is particularly common and life-threatening in immunosuppressed persons. Prophylaxis (preventative treatment) is available to prevent PCP.