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Is hepatitis B transmitted through saliva and sex?

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Hello doctor! I hope the doctor can help me. Below are the test results I received.
Alt :14 Ast: 15 Hbv: 2.18x10^2 Doctor let me ask, with this rate, is it easy to infect through saliva as well as sex? Should I use medicine to make hbv negative, doctor? I look forward to hearing back from the doctor. Thank you doctor.
Long (1994)
Reply
Hello! Low hepatitis B virus concentration < 10^4: the risk of infection will be low. However, you should test more for HBeAg, if HBeAg is positive, the risk of infecting others will be high. Hepatitis B virus is not transmitted through saliva, except when kissing or having sex causes bleeding in the mouth. Currently, liver enzymes are normal, and the virus concentration in the blood is low, so there is no indication for antiviral therapy. However, you should do more: Liver elastography or Fibroscan to assess liver fibrosis, HBeAg test. From there, the doctor will choose the appropriate treatment for your current medical condition.
Thank you for sending your question to Vinmec Health System. Best regards!
Answered by Doctor Phan Dinh Thuy Tien - General Internal Medicine - Department of Examination & Internal Medicine - Vinmec Nha Trang International General Hospital

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