Pneumocystis pneumonia in humans is caused by P jiroveci not P carinii.
Miller
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R
D017088:AIDS-Related Opportunistic Infections / Q000188:drug therapy / Q000382:microbiology*; D006801:Humans; D045363:Pneumocystis carinii; D011020:Pneumonia, Pneumocystis / Q000188:drug therapy / Q000382:microbiology*