HIV test strips are generally accurate at 2 to 12 weeks. There are individual differences in the window period for HIV test strips, which are also related to the type of test strips. 1. Individual differences: the body produces antibodies at different times after infection with AIDS, so the test time is also very different, some people can produce antibodies in about 2 weeks and can be detected, while some people need about 4 to 12 weeks to be detected. 2. Different types of test strips: AIDS test strips are generally categorized into 3 generations and 4 generations, 3 generations of test strips may take 6 to 8 weeks to be able to check out; 4 generations of test strips are generally 2 to 6 weeks to be able to check out. The test results may not be accurate and cannot be used as a basis for confirming or ruling out the diagnosis of HIV. If you suspect HIV infection, it is recommended that you go to a hospital or CDC and get tested as directed by your doctor.