Why did one HIV test show positive but all others negative?

Question

Hi doctor,

We did an HIV test two years ago. My wife got negative. My test results showed that one method was positive, and the rest were negative. The test was repeated after one month. I got a negative report, and the doctor said not to worry, but that registered in my mind as to why it showed positive results in one method.

Then I started giving samples to many advanced diagnostic centers. All reports came back negative. I have almost done it 50 times. The latest report got delayed for some reason, but they have mentioned negative as per NACO 3 guidelines. So it is not leaving my mind, and I am not getting that comfort to discuss this. Kindly help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I read your query and can understand your concern.

Being in such a situation can be extremely stressful. Sometimes, a false-positive test result can occur due to technical or human errors. Various conditions are known to trigger false positives, such as infections like Epstein-Barr virus (EBV), autoimmune diseases like lupus or rheumatoid arthritis, and recent vaccinations (e.g., for the flu or hepatitis B). Receiving multiple blood transfusions can also affect test outcomes. Additionally, clerical mistakes or accidental sample mix-ups in the lab may lead to incorrect results. Given that you've received multiple negative results afterward, it strongly suggests that the initial positive result was likely an error.

This kind of error, while rare, can happen and understandably causes unnecessary worry. Based on the repeated negative tests, it is safe to say you can be reassured. There is no need to keep retesting, as it may only increase anxiety without offering new insights. Try to shift your focus back to your regular daily life and take comfort in the consistent negative results. Hopefully, this explanation brings you some peace of mind. Take care of yourself, and remember—you are not alone in this, and it is okay to move forward.

I hope this helps.

Thank you.

Answer 2

Hello,

Welcome back to icliniq.com.

I read your query and can understand your concern. As per guidelines, individuals asymptomatic for HIV (human immunodeficiency virus) require testing from 3 different test kits before a reactive (positive) diagnosis is made. For symptomatic individuals, testing has to be done using two different kits. So, it is likely that your diagnosis is (nonreactive) negative, as it tested nonreactive from subsequent kits.

I hope this helps.

Please revert in case of further queries.

Thank you.