Usually all markers can be detected in the patient’s body about 4 weeks after infection with AIDS. The majority of hospitals in our country test for HIV, and HIV antibodies are the gold standard for the diagnosis of HIV infection, and the sensitivity of HIV antibody testing by ELISA, chemiluminescence or immunofluorescence can reach over 99%. It can be detected in the infected person’s body about 3-4 weeks after infection, so after 4 weeks of high-risk behavior, you should go to the hospital for a test, and by this time you will have passed the window period of AIDS. If the test is also positive, the patient can be diagnosed with AIDS.