<unk>  tests are used to detect the presence of the human immunodeficiency virus <unk> , the virus that causes acquired immunodeficiency syndrome <unk> , in serum, saliva, or urine. Such tests may detect antibodies, antigens, or RNA.
Diagnosis of HIV/AIDS
Cancer screening
Breast cancer screening
Prostate cancer screening
Lung cancer screening
Cervical screening
Cancer staging
History of virology