The window period for HIV is generally 14 to 21 days, or about 1 week if tested with nucleic acid. The window period for HIV infection is the period of time during which the body produces a sufficient amount of HIV antibodies that can be detected by testing methods, which is called the window period for HIV, and is generally 14 to 21 days. Nowadays, with the advancement of medical science and technology, the window period for the detection of HIV antibody, antigen and nucleic acid by existing diagnostic technology is about 3 weeks, 2 weeks and 1 week respectively after infection. The window period for HIV is highly contagious, although antibodies are not yet detectable. AIDS is an acquired immunodeficiency disease that is mainly transmitted through sexual intercourse, mother-to-child transmission and blood transmission. After having high-risk sex, if you want to diagnose whether you are infected with HIV, you need to go to your local CDC for HIV antibody testing. If the test result is a positive reaction and you are suspected of having HIV infection, you need to go to the CDC for a nucleic acid test in order to confirm the diagnosis of HIV infection. People who are suspected to be infected with HIV need to seek medical attention and relevant treatment in a timely manner in order to avoid delaying their condition.