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How Effective Is Hepatitis B Vaccine?

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Posted on Thu, 18 Sep 2014
Question: I took a 2 shot of the hepatitis B vaccine about 7 years ago and i just get the 3rd about a month ago. So the question is am i 100% save if have sex with hbv p
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Answered by Dr. Chobufo Ditah (1 hour later)
Brief Answer:
Please, get your antibodies titres measured!

Detailed Answer:
Hi and thank you so much for posting on HCM.

The best way to tell whether you were effectively protected after your complete vaccination schedule is to get you antibodies measured. This is prove of immunity. This is even more important as you are considering direct exposure with someone who is HBV positive. Without this documentation, I will not recommend that you go on and have sex without protection on the grounds that you were vaccinated.

In all, get your antibodies measured. If they show that you developed sufficient levels of immunity, then having sex with someone who is HBV positive is of no major concern as you are protected.

I hope you find this helpful and addresses your query fully. Feel free to keep the discussion going if need be. Also, feel comfortable asking for more clarifications.
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Dr. Chobufo Ditah

General & Family Physician

Practicing since :2009

Answered : 6323 Questions

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How Effective Is Hepatitis B Vaccine?

Brief Answer: Please, get your antibodies titres measured! Detailed Answer: Hi and thank you so much for posting on HCM. The best way to tell whether you were effectively protected after your complete vaccination schedule is to get you antibodies measured. This is prove of immunity. This is even more important as you are considering direct exposure with someone who is HBV positive. Without this documentation, I will not recommend that you go on and have sex without protection on the grounds that you were vaccinated. In all, get your antibodies measured. If they show that you developed sufficient levels of immunity, then having sex with someone who is HBV positive is of no major concern as you are protected. I hope you find this helpful and addresses your query fully. Feel free to keep the discussion going if need be. Also, feel comfortable asking for more clarifications.