Stopping PCP prophylaxis.
D017088:AIDS-Related Opportunistic Infections / Q000188:drug therapy* / Q000276:immunology / Q000517:prevention & control*; D018791:CD4 Lymphocyte Count / Q000187:drug effects; D005500:Follow-Up Studies; D006801:Humans; D011020:Pneumonia, Pneumocystis / Q000188:drug therapy* / Q000276:immunology / Q000517:prevention & control*