How reliable is CMIA test for early HIV detection?

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Both the tests show a non-reactive result, which indicates that your reports are fine. Chemiluminescent microparticle immunoassay (CMIA) test is a reliable, accurate, and standard method. It tests for P24 antigen as well as antibodies to HIV1 and 2. The accuracy of this test is 99.9% after three months post-exposure. The window period (the period before development of detectable antibodies) is three months, that is, 12 weeks. I consider your test to be conclusively negative because of the high accuracy of the CMIA test, and the test is performed well beyond the window period (based on your history of only a single exposure 175 to 180 days before the tests).

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You can very well start your normal family life without any worries. As I can see from your past diagnosis and medical history, you have some psychological issues as well. I highly recommend meditation techniques like Rajyoga meditation, which improves all four aspects of your health—physical, emotional, spiritual, and social. So, please give it a try. An ELISA test looks only for antibodies to an HIV infection. The window period is four weeks to three months. The CMIA or combo test that you had done is a fourth-generation test. CMIA tests for both antibodies and P24 protein antigens. The P24 antigens can be detected within the first few weeks post-exposure. Therefore, it shortens the window period for the test. This test is considered to be conclusive at six weeks. Comparing the two tests, CMIA is not necessarily better than the ELISA test. It can simply produce more accurate results earlier than the ELISA test.

I hope this helps.

Thank you.

Hello,

Welcome to icliniq.

The window period is the period before development of detectable antibodies) In a CMIA test for HIV, the window period is 3 months or 12 weeks. In Hep B (HBs Ag), the window period may last as long as 6 months. In Hepatitis C (Antibody test), it may take up to three months for antibodies to appear in your blood following infection (although it is usually positive by 6 weeks).

I hope this helps.

Thank you.