It is possible to rule out AIDS at 6 weeks. The window period for AIDS is around 2-6 weeks, and the window period is the period of time when you are infected with HIV and have not yet produced antibodies. Although the antibody is negative, the HIV virus is already present in the body and is also contagious. For high-risk groups, it is recommended to take an antibody test after the window period for more accurate results. AIDS patients need timely treatment, can effectively reduce the risk of transmission, the contagiousness of AIDS and the patient’s body is related to the virus. The most important thing is to be clean, have a regular sexual partner, do not go to irregular medical institutions for injections and so on.