This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'All of the following statements about Pneumocystis Jiroveci are true, EXCEPT: \nSelect and explain. \nA. Usually associated with CMV infection, B. May be associated with Pneumatocele, C. Usually diagnosed by sputum examination, D. Causes disease only in the immunocompromised host', 'role': 'user'}, {'content': "Answer: A \nExplanation: Pneumocystis Jiroveci is usually not associated with CMV infection but rarely it is. Whereas Pneumocystis Jiroveci may be associated with Pneumatocele and can be diagnosed by sputum examination and commonly causes disease only in the immuno-compromised people. Ref: Medical Microbiology By Jawetz, 24th Edition, Pages 648-49; Washington Manual of Pulmonary Medicine, 2006, Page 104; Harrison's Principles of Internal Medicine, 16th Edition, Pages 1194-95; Pneumocystis Pneumonia By Walzer, Cushion, 3rd Edition, Page 418", 'role': 'assistant'}]