Nov 23, 2013
I had three doses of HBV vaccine. When I went for test, HBSAG was positive. What could this mean? was I infected before vaccination or it was caused by vaccine? I went to a consultant and no complications were found in all test. It is five months since the test was conducted. Hope to hear from you soon
| Response from Dr. Taylor
You likely were infected before vaccination.
The vaccine does not cause hepatitis B. However unsafe injection practices can transmit hepaititis B. So if you are in a place where the needle used to administer the vaccine was not a new one, and was used on a person with hepatitis B, it is possible that you acquired hepatitis B from the infected needle'syringe.
Ideally, next steps include stopping alcohol and tobacco use if you use (these increase the risk of liver cancer with hepatitis B); getting tested for HIV, hepatitis C and hepatitis A; and getting some additional liver-related blood tests including hepatitis B DNA, eAg and ALT. These results will help your doctor determine next best steps regarding treatment.
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