Question

the fungal - like organism pneumocystis carinii is an opportunistic pathogen that commonly causes pneumonia in patients with

cancer
diabetes
aids
alzheimer disease

Explanation:

Pneumocystis jirovecii (formerly Pneumocystis carinii) pneumonia (PCP) is a common opportunistic infection in patients with AIDS (Acquired Immunodeficiency Syndrome). The human immunodeficiency virus (HIV) attacks and weakens the immune system. In individuals with AIDS (a late - stage of HIV infection), the severely compromised immune system allows Pneumocystis jirovecii (a fungus - like organism) to cause pneumonia. While patients with cancer (especially those undergoing chemotherapy which can suppress the immune system) can also get PCP, it is most commonly associated with AIDS. Patients with diabetes (unless they have very poor glycemic control and associated immune dysfunction) and Alzheimer disease (a neurodegenerative disorder not primarily characterized by severe immune deficiency) are not the most typical populations for PCP compared to AIDS patients.

Answer:

AIDS