Based on the results you've shared, this pattern does not clearly indicate
HIV infection, and the undetectable HIV RNA PCR is a very reassuring finding.
Here's how to interpret the results:
CMIA repeatedly reactive (6.90, then 5.01): This is a screening test. A reactive screening test does not by itself diagnose HIV. False-positive CMIA results can occur.
ELFA HIV-1 p24 antigen: One "indeterminate" and one "negative" result do not confirm HIV.
ELFA HIV-1/2 antibody: Negative.
Tridot: Negative twice.
Immunochromatographic test: Negative.
HIV RNA PCR (22 July): Undetected, which is a very strong piece of evidence against active HIV infection, especially if it was performed after the suspected exposure.
For you:
Your HIV ECLIA is negative, which is reassuring.
What does this combination most likely mean?
This combination is more suggestive of a false-positive screening CMIA than confirmed HIV infection. However, no single test should be interpreted in isolation. HIV diagnosis should follow the recommended testing algorithm, and when screening and confirmatory tests disagree, repeat testing after the appropriate interval is often advised.
Next Steps
What should your boyfriend do next? He should continue follow-up with the physician or infectious disease specialist who ordered the tests. They may recommend: Repeating a 4th-generation
HIV Ag/Ab test after the recommended interval. Repeating HIV RNA PCR if clinically indicated. Following the national HIV testing algorithm used in your country. Should you be worried? Based on the information you have provided, there is no confirmed diagnosis of HIV in your boyfriend. Therefore, there is also no evidence from these results that you have acquired HIV, particularly since your own ECLIA is negative. When was your boyfriend's last possible HIV exposure before the first CMIA test on 16 July? (Please give the exact date if possible.) Did he have any risk exposures after that date? The timing between the exposure and the HIV RNA PCR is important for determining how reassuring the undetectable PCR result is. Thank you