Patient's question:
How long does a newborn need to get a dose of the hepatitis B vaccine?Doctor's answer:
The commonly used injection method is the "0, 1, 6-month injection method," which involves administering the second shot one month after the first shot and the third shot six months after the first shot. According to the specific instructions for the vaccine, 5 to 10 micrograms should be injected intramuscularly each time. At the seventh month, a hepatitis B five-item test should be conducted to check the vaccination effectiveness. If the hepatitis B surface antibody is positive, it means the vaccination is effective. The hepatitis B surface antibody is a protective antibody that ensures the body has immunity against the hepatitis B virus, and its presence is the most important indicator of the effectiveness of the hepatitis B vaccine. The protective success rate after vaccination can reach over 97%.