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Is it really necessary to retest after 6 months for HIV?
Yes
Last updated on 29 Jun 2023
There are three types of tests used to diagnose HIV infection: antibody tests, antigen/antibody tests, and nucleic acid tests (NATs).
Not very accurate
Very accurately
A rapid antigen/antibody test done with blood from a finger stick can usually detect HIV 18 to 90 days after exposure
They are conclusive but you can repeat the test after 90 days for best results.
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