Question
A boy, six years old, was vaccinated with the hepatitis B vaccine as per the schedule right after birth. However, during tests in May and September this year, it was found that he had not produced antibodies. What should be done if there is no antibody response to the hepatitis B vaccine?
Answer
Based on your description, the lack of antibody response to the hepatitis B vaccine is related to both the vaccine’s effectiveness and the body’s immune system. It is recommended to re-vaccinate with the hepatitis B vaccine. You can try a different manufacturer’s hepatitis B vaccine or use a 60 microgram high-dose vaccine. Check the antibody levels again one month after vaccination. I personally advise taking the child for vaccination as soon as possible, while also being cautious to avoid sharing utensils and other items with others.