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Have Hbsag -ve, Anti Hbs Was 4. Given Booster. Now >1000. Meaning?

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Posted on Fri, 25 Oct 2013
Question: my son is hbsag -ve,his anti hbs was 4,so given booster now it is >1000 .what does it mean
doctor
Answered by Dr. Dr.P.Ratnakar Kini (13 minutes later)
Brief Answer:
Detailed answer given below

Detailed Answer:
Hi,
Thanks for posting your query.
I am Dr.Ratnakar Kini and I am pleased to assist you.

HBsAg is marker for infection with hepatitis B virus. It is negative, then it indicates, your son is not having that infection.

Anti HBs is the antibody against HBsAg. Antibodies are protective substances in blood. They are naturally produced by the immune system when the virus enters your body or it can be acquired by getting vaccinated.

Your son's initial Anti HBs was too low to be protective. Hence a booster dose of the vaccine was given and now the antibody level has increased to the extent that it would protect him against Hepatitis B virus infection.

Let me know if I can assist you further.
Regards,
Dr.Ratnakar Kini
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Dr.P.Ratnakar Kini (13 minutes later)
he needs 2nd dose of booster? is high anti hbs of more than 1000 is ok .does he require any other test
doctor
Answered by Dr. Dr.P.Ratnakar Kini (17 minutes later)
Brief Answer:
He does not need a second booster.

Detailed Answer:
Hi,
Thanks for getting back to me with more questions.

No, he does not need a second booster dose.
Yes, his current antibody titer is Ok and is protective.
No, he does not need any other test.

Let me know if I can assist you further.
Regards,
Dr.Ratnakar Kini
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Dr.P.Ratnakar Kini (35 minutes later)
in fact,he has to donate blood to his father ,but screening test for blood donation said he cant donate blood.since his anti hbs titre was that time 4,was that the reason not fit for blood donation.father is hbsag +ve

i want to ask some question about my husband..can i?
doctor
Answered by Dr. Dr.P.Ratnakar Kini (3 hours later)
Brief Answer:
Detailed answer given below.

Detailed Answer:
Hi,
I do not know why they said he cannot donate blood. If he is positive for HBsAg, then he cannot donate blood. But he is only negative for HBsAg.

Yes, you can ask questions about your husband.
Regards,
Dr.Ratnakar Kini
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Above answer was peer-reviewed by : Dr. Vaishalee Punj
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Answered by
Dr.
Dr. Dr.P.Ratnakar Kini

Gastroenterologist

Practicing since :1994

Answered : 2208 Questions

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Have Hbsag -ve, Anti Hbs Was 4. Given Booster. Now >1000. Meaning?

Brief Answer:
Detailed answer given below

Detailed Answer:
Hi,
Thanks for posting your query.
I am Dr.Ratnakar Kini and I am pleased to assist you.

HBsAg is marker for infection with hepatitis B virus. It is negative, then it indicates, your son is not having that infection.

Anti HBs is the antibody against HBsAg. Antibodies are protective substances in blood. They are naturally produced by the immune system when the virus enters your body or it can be acquired by getting vaccinated.

Your son's initial Anti HBs was too low to be protective. Hence a booster dose of the vaccine was given and now the antibody level has increased to the extent that it would protect him against Hepatitis B virus infection.

Let me know if I can assist you further.
Regards,
Dr.Ratnakar Kini