|HCW Hep B
Apr 6, 2008
Hi, I am a dentist. I had my booster engerix B about a year ago & 4 weeks after the vaccination I went for quantitative anti HBs & it came out >1000mIU/ml. This was on 29th May last year. Just a week ago I retested in order to determine my immune status to provide to my new employer & this time it came out 198 IU/L. Do u think it is possible that antibody levels to hep B can fall so low in less than a year? The tests have been conducted at different labs & are also expressed in different units. I spoke with my physician & asked this latest test to be repeated & it came out 200 IU/L , what do you think ? should I go in for yet another test at a new lab? I know that I am immune but the count will dictate when I get my booster again. If these are the correct results, when do you think Ill need a booster. I have had my 3 shots & a booster at five years. (the booster I mentioned earlier) Thanks & cheers Amit Kapoor
| Response from Dr. McGovern
You are correct in wondering if perhaps the decline is also somewhat inflated due to different laboratories and assays. However, with a level of 10 IU being protective, you are nowhere near that and I would simply check again in about one year. If you are uncomfortable that you may be waiting too long, a simple blood test in six months will give you a better idea of the decay of antibody levels.
Get Email Notifications When This Forum Updates or Subscribe With RSS
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.