Second generation HIV test were based on the recombinant antigens for HIV-1 p24. The window period was up to 4 to 6 weeks post-infection. Third generation HIV test can detect IgM antibody in addition to second generation tests. Fourth generation tests is a test which can detect both HIV-specific antigen p24 and HIV antibodies. The SURE CHECK ® HIV 1/2 Self-Test is a rapid, single-use in-vitro diagnostic test that detects antibodies in your blood sample that are specific for HIV-1 and HIV-2 (not the HIV virus itself). These antibodies produce the TEST line. The SURE CHECK ® HIV 1/2 Self-Test is intended to be used as a screening test for the lay user in diagnosing HIV-1 and HIV-2 infection. The p24 tests are fourth generation tests as are Tri-Dot and Duo tests. 3rd generation tests take 6-8 weeks (usually clinics say 3 months) and is only test for antibodies. 2nd generation tests take a few weeks longer after infection before they are able to recognise infection. 4th generation tests are accurate 3-4 weeks after exposure, because Accuracy of hiv test. I've had a 3rd generation hiv rapid test after 4 months and 18days of possible exposure came back negative should i trust my results or re test again ? Plss answer im worried so much.
The first FDA approved rapid point-of-care test that detects both HIV-1/2 antibodies and free HIV-1 p24 antigen. This antigen/antibody test (4th generation) has the ability to identify HIV earlier than antibody-only tests (2nd and 3rd generation). 1 It enables health care providers to diagnose HIV infection earlier allowing individuals to seek medical care sooner.

4th generation HIV tests (antigen/antibody) are 95% accurate after 4 weeks and more than 99% accurate after 6 weeks. UK guidelines recommend waiting 6 weeks which will not need to be repeated. If you use a 3rd generation test (antibody only), please wait 8 weeks for a final result. Testing earlier than this means you need to confirm the

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    • 3rd generation hiv test accuracy