Hepatitis B transmission routes

Jul 13, 2024 Source: Cainiu Health
Disease description:

This week, I took my child for the hepatitis B vaccine, and I became very interested in the transmission routes of hepatitis B. I would like to ask the doctor: what are the transmission routes of hepatitis B?

Doctor's answer (1)
Dr. Yang Ziqi

Hepatitis B is mainly transmitted through the following routes:

1. Bloodborne transmission: This is the most common mode of transmission, including the use of unsterilized or inadequately sterilized syringes, needles, surgical instruments, and transfusion of contaminated blood or blood products.

2. Mother-to-child transmission: An infected mother may pass the virus to her newborn during childbirth. However, widespread implementation of hepatitis B vaccination and mother-to-child transmission prevention measures has significantly reduced this risk.

3. Sexual contact transmission: Unprotected sexual activity is an important route of hepatitis B virus transmission, especially among individuals with multiple sexual partners or when one partner is infected.

4. Close daily contact: Although relatively uncommon, long-term close contact, such as sharing personal hygiene items like razors, toothbrushes, or shaving blades, may also lead to virus transmission.

The key to preventing hepatitis B is vaccination. The hepatitis B vaccine is safe and effective for most people. If you have any concerns, it is recommended to seek medical advice promptly.