A negative six-month HIV test usually does not require retesting.
AIDS is a sexually transmitted disease (STD) caused by human immunodeficiency virus (HIV) infection, which is generally transmitted through sexual intercourse, blood route, and mother-to-child transmission. After having high-risk contacts, tests are usually conducted at 8 weeks, 3 months and 6 months. If each test result is negative, HIV infection can usually be ruled out.
The 3rd generation test reagent can be detected around 4~6 weeks after infection; the 4th generation test reagent can be detected 2~6 weeks after sexual contact, and HIV infection can be excluded when the test is negative six months after high-risk contact, so there is no need for retesting.
There are high-risk contacts need to go to the hospital in time for examination, in order to clarify the diagnosis as soon as possible.