Five weeks of third-generation testing for HIV antibodies is not enough to completely rule it out. Currently, the third generation of HIV antibody test is more efficient than the previous one. However, according to the guidelines for the prevention and treatment of AIDS, the test should be performed once every three and six months after the risky behavior. If there is a high-risk behavior of AIDS, you should take anti-blocking drugs as soon as possible, after taking blocking drugs for five weeks negative test can probably rule out AIDS, but to be safe, it is still recommended that high-risk behavior after 12 weeks for testing. AIDS is important in the prevention, but if you accidentally have high-risk behavior, you should go to the hospital under the guidance of specialists to carry out the appropriate blockade, and closely tested.