I took an HIV 1 and 2 antibodies screening and an HIV 1 and 2 p24 combo test 86 days after I was exposed. The results came back negative. Can I be sure that's conclusive at this point?
A negative HIV 1&2 antibodies and p24 combo test after 86 days (approximately 3 months) of exposure is highly suggestive of non-infection, but not conclusive. Here's why:
Reasons for Caution
1. Window period: HIV antibodies may take up to 3-4 months to develop.
2. False negatives: Rare, but possible due to laboratory errors or test sensitivity.
3. Viral load: Low viral load may not trigger antibody production.
Next Steps
1. Repeat testing: Schedule another HIV test 3-6 months after initial exposure.