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?

Answered by 1 Apollo Doctors

Dr Mubarak Parveez B

General Practitioner

MBBS
2+ Yrs

Consult Now

kk take

Dr. Mubarak Suggests...

Consult a Infectious Disease specialist

Find a Infectious Disease specialist

Answered 04/07/2025

Ask Apollo

AI powered Health Chatbot

Continue Chat

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.

Accuracy at 63 days: The test is considered very accurate, with a high sensitivity and specificity, meaning false negatives are rare at this stage.
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.
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.
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.

More Infectious Disease Health Queries

View all

I've been treated for TB lymph nodes about three years ago and was on medication for 19 months. Since then, I've been healthy and maintaining a good diet. However, just this past month, I noticed a lymph node swelling near my wrist, but it's not painful and I haven't noticed any other symptoms in my body. I'm feeling a bit concerned and just want to know if there's a possibility of the TB lymph nodes returning?

do TB test

Answered by 1 Apollo Doctors

I got a series of 5 rabies shots about a month back, and it was the Abhayrab brand. Recently, I got scratched by a dog again, so I decided to get 3 booster doses instead of the usual 2. I'm really anxious about whether having so many vaccines could cause any serious side effects. Could you please advise? I'm worried and need some guidance.

Nothing to worry. Trust me, it is safe.

Answered by 1 Apollo Doctors

I'm really worried about my syphilis tests. About two months ago, my TPHA level was 1320 and RPR was 12. My doctor put me on doxycycline, 100 mg twice a day for 21 days. After finishing the treatment, I tested again and my TPHA had increased to 1640, with the RPR still at 12. They then gave me a penicillin injection, 2.4 mu, and told me to get tested after another two weeks. This time, my results were TPHA 1640 again, but RPR went up to 14. I even did a test at a different lab and the TPHA was 12560 there. I'm scared and not sure what's going on. Can you help me understand these results?

Your test results indicate a persistent syphilis infection, and the treatment outcomes are concerning; the increasing RPR titers (1:2 to 1:4) and varying TPHA results (1:320 to 1:640 to 1:2560) suggest that the infection may not be responding to the treatments administered; consult a specialist,

Answered by 1 Apollo Doctors