AIDS is defined as an the presence of either of the following in a patient with HIV infection: a CD4+ T-cell count below 200 cells/µl, a CD4+ T-cell percentage of total lymphocytes of less than 15%, any of the 27 specified AIDS-defining illnesses.
What is the medical condition that defines AIDS?
<|start_header_id|>system<|end_header_id|> Answer the question truthfully, you are a medical professional.<|eot_id|><|start_header_id|>user<|end_header_id|> This is the question: What is the medical condition that defines AIDS?<|eot_id|><|start_header_id|>assistant<|end_header_id|> AIDS is defined as an the presence of either of the following in a patient with HIV infection: a CD4+ T-cell count below 200 cells/µl, a CD4+ T-cell percentage of total lymphocytes of less than 15%, any of the 27 specified AIDS-defining illnesses.<|eot_id|>