<prompt> Which is NOT AIDS defining illness?Oropharynx candidiasisCMV retinitisPrimary CNS lymphomaKaposis sarcoma  <response>: Ans. a Orpharynx candidiasis Candidiasis of bronchi, trachea, lung, oesophagus comes under AIDS defining criteria. Infections listed in the AIDS surveillance case definition Candidiasis of bronchi, trachea, lungs, oesophagus Coccidioidomycosis, disseminated or extrapulmonary Cryptococcosis, extrapulmonary Cryptosporidiosis, chronic, intestinal 1 months duration Cytomegalovirus disease other than liver, spleen, or nodes Cytomegalovirus retinitis with loss of vision Encephalopathy, HIV-related Herpes simplex: chronic ulcers 1 months duration; orbronchitis, pneumonia, or esophagitis Disseminated or extrapulmonary histoplasmosis Isosporiasts, chronic intestinal 1 months duration Mycobacterium avium complex or M.kansosil, disseminated or extrapulmonary Mycobacterium tuberculosis, any site pulmonarya or extrapulmonary Mycobacterium, other species or unidentitled species, disseminated or extrapulmonary. Pneumonocystis jiroved pneumonia Salmonella septicemia, recurrent Toxoplasmosis of brain Wasting syndrome due to HIV 