- Male
- 26 Years
- 20/02/2025
Hey, I'm a bit worried and need some advice. I took an HIV 1 and 2 ECLIA antibody test on the 63rd day after potential exposure, and it was done using the Roche e411 analyzer. I'm curious about how accurate the results might be at this stage. Should I trust the results, or do I need to retest later?
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Dr. Mubarak Suggests...
Consult a Infectious Disease specialist
Answered 04/07/2025
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At 63 days post-exposure, an HIV 1 and 2 ECLIA antibody test using the Roche e411 analyzer is highly reliable. This test detects antibodies and possibly antigens related to HIV, and by this time frame, most individuals who have contracted HIV will test positive. However, no test is 100% definitive immediately after exposure.
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Accuracy at 63 days: The test is considered very accurate, with a high sensitivity and specificity, meaning false negatives are rare at this stage.
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Trusting the results: If your test is negative, it is very reassuring, but some guidelines recommend a follow-up test at 3 months (90 days) post-exposure for complete confirmation.
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Retesting: If your initial test is negative and you have no ongoing risk, a retest at 90 days can provide additional reassurance. If positive, confirmatory testing will be done by your healthcare provider.
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Next steps: Discuss your results with a healthcare professional who can guide you on any further testing or preventive measures.
Overall, your test at 63 days is a strong indicator of your HIV status, but a follow-up test at 90 days is often advised for absolute certainty.
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