Need help interpreting results

[alexsandro1]

Hello everyone,
I am  posting because I was wondering if anyone would help me interpret the results I got.

Here's my situation: I took a general STD test several months back, and I tested positive for Hep B. As a result the doctor I went to told me to take a HEPATITIS B SURFACE ANTIBODY TEST (QUANT) to check if I really have Hep B or if I tested positive because of having taken a vaccine. My result for HEPATITIS B SURFACE ANTIBODY  TEST (QUANT) was 128 mIU/mL, and the results also say that I am accordingly immune to the Hepatitis B virus. Something else that I should add is that I I looked on my records and noted that I had two HEP B vaccines when I was an infant: one on 1994 and the second on 1997 ( I was born on 1993).


Now here are my questions: Could I have tested positive in my first test (which I have attached as a picture) because of the two vaccines I had even though they were nearly 20 years ago? Or did I become immune to HEP  B after having been exposed to the Hep B virus from a source other than a vaccine?

I appreciate all responses, and I apologize for the length.

[alexsandro1]

Thanks StepehnCastlecrag for your response. I am actually already aware of the fact that I am immune to HBV virus. I made the post because I was curious to know how I acquired the immunity. Namely, I would like to know if I acquired the immunity as result of having been vaccinated about 20 years ago or through some other means (e.g., from exposure to the virus from another person)? I appreciate any responses.

[StephenCastlecrag]

You had always test positive for Anti-body to HBsAg - in the first test, it was REACTIVE, in the second, it was 128 miu/ml, again Positive because it is greater than 10 miu/ml.

So, you have never been tested for HBsAg (or test results not included by you). You DO NOT have Hepatitis B, instead you have immunity, you are protected from HBV.