Taking blocking medication six weeks after high-risk negative, most people can basically rule out infection, but there are special circumstances.
HIV testing is generally to detect HIV (human immunodeficiency virus) antibodies, after high-risk behavior, the virus enters the body to the earliest detection of antibodies for the window period, the window period of the HIV antibody test is 4-12 weeks, the use of three-generation antibody test or four-generation antibody test, six weeks of the presentation of the negative, it is possible to rule out the possibility of infection.
However, if you are taking immune preparations, fail to take the blocking drug in time, or other special circumstances, even if you are negative at the sixth week, there is still a possibility of false negatives, and it is recommended that you delay the test until 12 weeks to be on the safe side, and if you are still negative, you can basically rule out HIV infection.