The most accurate test for HIV is the HIV viral load test, or HIV-RNA, which detects the presence of the AIDS virus in the patient’s bloodstream, and if it is present, the patient is infected with AIDS. In China, the CDC usually uses a protein blot test to detect the presence of HIV antigens or antibodies in the patient’s body, and this method is also very accurate. Once HIV infection is diagnosed, the patient should be treated with antiretroviral drugs as soon as possible to avoid progression to the AIDS stage. Once the disease has progressed to the AIDS stage, the patient’s life expectancy will be significantly reduced.