Infections with species in the genus PNEUMOCYSTIS, a fungus causing interstitial plasma cell pneumonia (PNEUMONIA, PNEUMOCYSTIS) and other infections in humans and other MAMMALS. Immunocompromised patients, especially those with AIDS, are particularly susceptible to these infections. Extrapulmonary sites are rare but seen occasionally.

Synonyms: P jirovecii Infections, P jirovecii Infection, P. carinii Infections, Infection, P jirovecii, Pneumocystis Infection, Infection, P. jirovecii, Pneumocystis carinii Infections, P. carinii Infection, Pneumocystis carinii Infection, P carinii Infections, Infection, Pneumocystis jirovecii, Pneumocystis jirovecii Infections, Pneumocystis jirovecii Infection, Infection, Pneumocystis, P carinii Infection, P. jirovecii Infection, Infection, P carinii, Infection, P. carinii, P. jirovecii Infections, Pneumocystis Infections