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: Medicine
In HIV infection the prophylaxis for pneumocystis jiroveci may be stopped after HAA if the CD4 count persists more than 200 for what duration? 
Select and explain. 
A. 1 month, B. 2 month, C. 3 month, D. 6 month
C: 3 month
Answer: C: 3 month 
Explanation: Pneumocystis jiroveci - Prophylaxis should be staed if the patient has 1. CD4+ T cell count OR 2. Oropharyngeal candidiasis OR 3. Prior bout of PCP DRUG used: Trimethoprim/sulfamethoxazole (TMP/SMX), 1 double strength tablet once daily The prophylaxis may be stopped if CD4+ T cell count >200 for 3 months Ref: Harrison, Edition-18, Page-1544.