A member asked:

How is it possible to have been vaccinated (and boosters) and bld test indicates no antibodies for any vaccines...?

3 doctors weighed in across 2 answers
Dr. Elizabeth Wallen answered

Specializes in Pediatrics

It happens...: but it does not mean you are not protected. There are a small number of patients who have had certain vaccines who do not have detectable antibodies. I am one of them. I have gone through the the entire Hepatitis B vaccine series TWICE and I have no detectable antibodies. Even though antibodies have not been detected, studies have shown the vaccine is still protective.

Answered 6/25/2014

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Time or Failure: Depending on what antibodies your testing for it may be that too much time has elapsed since vaccination. Additionally, it could indicated that the vaccine failed in your instance.

Answered 6/20/2014

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