I had my test done for Hep B surface antibody and it says it is >5 titres per unit, which means antibodies have not been produced in the blood. Am i correct?
2006-12-26 21:08:00 · 3 answers · asked by Smruti 1 in Health ➔ Diseases & Conditions ➔ Infectious Diseases
Also how long does it take to produce antibodies against this virus?
2006-12-26 21:09:39 · update #1
i have not taken any immunization before. Would my hep B surface antibodies in the blood be higher if i had come into contact with infection before? also how long does it take for antibodies to show if i have been infected?
2006-12-27 06:04:40 · update #2
Negative hep B antibody means you do not have immunity to hep B. If hep B surface antigen is negative, there is no current infection. What is your iummune status? After 3 doses of hep B vaccine, your titre must be >10 units per litre. The titre can fall after some time, but when the body encounters the virus, it will start producing antibodies again. Therefore, a booster dose is not required for hep B vaccine. If the titre is < 10 units per litre soon after completing 3 doses, you need an extra dose.
2006-12-27 04:34:59 · answer #1 · answered by yakkydoc 6 · 1⤊ 0⤋
Yes, you are correct. A negative Hep B surface antibody means that you are negative for hep B at this time.
2006-12-27 05:10:28 · answer #2 · answered by Molly 4 · 0⤊ 1⤋
i don't know the second question but to answer the first, the antibodies are produced when you are exposed to a virus. ussually it means at anypoint in your life unless it was very recently.
2006-12-27 05:11:03 · answer #3 · answered by anonymous 6 · 0⤊ 1⤋