One month of high-risk sex can detect AIDS, but the results may not be accurate, and need to be reviewed 3 months after high-risk sex to clarify.
AIDS is a systemic disease caused by infection with the human immunodeficiency virus (HIV), which causes various opportunistic infections and tumors.
Due to the different ways of testing for HIV, the window period varies somewhat. Generally the window period for HIV antibody is about 4 to 12 weeks after infection, the window period for HIV antigen is about 2 weeks after infection, and the window period for nucleic acid is about 1 to 4 weeks after infection. The time it takes to detect infection varies from hospital to hospital due to differences in testing methods. Generally, the test can be performed one month after high-risk sexual behavior and clarify whether or not an infection has occurred.
In order to rule out the possibility of false negatives, it is recommended that the test be repeated three months after high-risk sexual behavior, and if the test result is still negative, the possibility of infection can be basically ruled out.