The viral index is usually not associated with interruption of mother-to-child transmission. Therefore, the mother of a hepatitis B virus will cause mother-to-child transmission no matter what her viral index is. However, mother-to-child transmission can be interrupted by other means, such as oral antiviral drugs, hepatitis B vaccine and immunoglobulin. 1. Oral antiviral drugs: For hepatitis B carriers with high viral load, oral antiviral drugs, such as entecavir dispersible tablets, tenofovir disoproxil fumarate tablets, etc., should be taken under the instruction of doctor to reduce the viral load of the mother’s body, so as to lower the transmission rate. 2. Hepatitis B vaccination: Postnatal blockade is the injection of Hepatitis B vaccine immediately after the birth of the newborn. Usually, the injection should not be given for more than 24 hours because the effect of the vaccine decreases after a long period of time. 3. Injection of immunoglobulin: Hepatitis B immunoglobulin is injected into the newborn after birth, which is passive immunization. If infected with hepatitis B virus, it can integrate the virus and achieve the effect of eliminating the virus. Mothers carrying the hepatitis B virus are advised to go to the hospital in time for targeted treatment to avoid harming their babies.