disease has infectious agent fungal infectious disease infectious disease Pneumocystis infectious disease MONDO:0005923 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. infections, Pneumocystis EFO:0007447 Pneumocystis infection UMLS:C0851886 MESH:D016720 MEDGEN:163415 Pneumocystis