De hyppigst forekommende OI' er i kliniske undersøgelser var candidiasis, cytomegalovirus, herpes simplex, Pneumocystis carinii pneumoni og mycobakterium avium kompleks.
The most frequently observed OI’ s in clinical studies were candidiasis, cytomegalovirus, herpes simplex, Pneumocystis carinii pneumonia, and mycobacterium avium complex.