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Question
Hello doctor,
Recently, I was playing sports and had a collision with a friend, the result was that she bit me and then bleed. She has also just been tested for hepatitis B. So the doctor told me how hepatitis B is transmitted? I don't know if I'm contagious. I thank you doctor.
Anonymous customer
Answer
Answered by Master, Doctor Nguyen Thi Nhat - Infectious Diseases - Department of Medical Examination & Internal Medicine, Vinmec Hai Phong International General Hospital.
Hello,
With the question “How is hepatitis B transmitted? ”, the doctor would like to answer as follows:
Hepatitis B is transmitted through blood, sexual contact and from mother to child.
In the salivary glands of people infected with hepatitis B there is hepatitis B virus but at very low concentrations, so when you are bitten by someone with hepatitis B bleeding, you can be infected with hepatitis B if you have not been vaccinated. hepatitis B vaccine or have been vaccinated but do not have antibodies to hepatitis B virus.
Therefore, to confirm whether you are infected with hepatitis B or not, you need to have an HBsAg test now to confirm you have been infected with hepatitis B virus before or not if positive means you have been infected with hepatitis B virus before, if negative result means you have not been infected with hepatitis B virus and after 2 - 3 months you test again for HBsAg if negative then you are not infected with any other risk factors for catching the hepatitis B virus, such as having unprotected sex with someone who has hepatitis B or sharing razors with someone with hepatitis B.
If you If you still have questions about hepatitis B, you can go to a hospital under Vinmec Health System for further testing and advice. Thank you for trusting and sending questions to Vinmec. Wishing you lots of health.
Best regards!
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