A pulmonary disease in humans occurring in immunodeficient or malnourished patients or infants, characterized by DYSPNEA, tachypnea, and HYPOXEMIA. Pneumocystis pneumonia is a frequently seen opportunistic infection in AIDS. It is caused by the fungus PNEUMOCYSTIS JIROVECII. The disease is also found in other MAMMALS where it is caused by related species of Pneumocystis.

Synonyms: Pneumocystis jirovecii Pneumonia, P. carinii Pneumonia, P carinii Pneumonias, PCP Infection, Pneumocystis Pneumonias, PCP Pneumonias, Pneumonia, Pneumocystis jirovecii, PCP Pneumonia, Pneumocystis carinii Pneumonia, Pneumonia, P. carinii, Pneumocystis Pneumonia, Pneumonia, Pneumocystis carinii, Pneumonia, P. jirovecii, Infection, PCP, Pneumonia, P carinii, P. jirovecii Pneumonias, P. carinii Pneumonias, P carinii Pneumonia, Pneumonia, Pneumocystis, Pneumonia, PCP, Pneumonia, Interstitial Plasma Cell, P. jirovecii Pneumonia, Pneumocystosis, Pneumocystoses, Pneumonias, PCP, PCP Infections