|Can Hep B Vaccine cause a false positive HIV test?
May 17, 2001
Help DOC! thanks BD for your time, I'm finding this site to be #1 HIV infosource!!! #1 As regular blood donator, I was suprised that my donation was rejected, due to false positive for HIV. Could it be do to 2nd series of Hepatitis B vaccination.
Q#2 Is the red cross donation center obligated do follow-ups if you are bad test donor?
Very confused, more worried, horribly embarressed! please help, thanks!
Response from Dr. Dezube
Many vaccines can stimulate "cross-reacting" antibodies. It is definitely theoretically possible that the antibodies produced in response to the hepatitis B vaccine will cause a false positive reaction in the HIV ELISA test. HOWEVER, the laboratory will run a confirmatory Western Blot and if you are "false positive", then the Western Blot will be NEGATIVE.
One other alternative (albeit a long shot). Let's first ask why you got the Hepatitis B vaccine. Did you get it because your provider thought you are in a risk group which should be vaccinated, or did you get it because you were exposed to blood and your provider wanted to protect you? If the latter case is true, then how do I know that the blood exposure didn't contain HIV, so that the false positive is really a true positive.
2) The Donation center is indeed obligated to follow-up on positive tests.
(PS: You asked a whole bunch of other questions, which I had to cut our because of space considerations. You can re-ask them on a separate query if you wish}. BD.
Can I put my "stupid" mistake behind me?
poorly-differentiated carcinoma/cancer of unknown primary-- what is it?
- What's The Difference Between Mouth Herpes And Mouth Blisters?
- What To Take To Suppress Genital Herpes?
- What Are Shingles And What Do They Look Like?
- Ways To Get Chlamydia Other Than Sex
- What To Do If Treatment Did Not Work For Gonorrhea Or Chlamydia?
- What Is The Best Way To Treat Genital Herpes?
This forum is designed for educational purposes only, and experts are not rendering medical, mental health, legal or other professional advice or services. If you have or suspect you may have a medical, mental health, legal or other problem that requires advice, consult your own caregiver, attorney or other qualified professional.
Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither TheBody.com nor any advertiser is the publisher or speaker of posted visitors' questions or the experts' material.