HIV can basically be detected one month after high-risk exposure, but in order to rule out the possibility of false negatives, it is recommended that a retest be conducted three months after high-risk exposure.
AIDS, also known as Human Acquired Immunodeficiency Syndrome, is a systemic disease triggered by an organism infected with Human Immunodeficiency Virus (HIV).
Currently, testing technology has improved, and although the window period varies among different testing techniques, it has significantly shortened the window period for AIDS, enabling earlier diagnosis of AIDS. Infection can generally be detected one month after high-risk exposure. However, a small number of people may have a false-negative test. It is recommended that the test be repeated 3 months after the high-risk exposure, and if the test is still negative, infection can be basically ruled out.
Currently, HIV antibody positivity can be detected about 4 weeks after infection, and HIV antigen positivity can be detected about 2 weeks after infection. Nucleic acid testing takes even less time, about 1 week.
It is recommended to take the test in time after high-risk exposure to avoid delaying the disease.