What to Do If a 6-Year-Old Has Received Hepatitis B Vaccine and Still Tests Negative for Antibodies?

Question

The child is six years old and received three doses of the Hepatitis B vaccine at birth but did not produce antibodies. Later, they received one dose of the Hepatitis A vaccine and one dose of the Hepatitis B vaccine, administered separately. A few days ago, a test still showed no antibodies. Doctor, can they still receive the vaccine? Thank you!

Answer

Indeed, some individuals may not produce Hepatitis B surface antibodies after receiving the Hepatitis B vaccine, which could be due to immune system function issues or injection dosage problems. To prevent Hepatitis B infection, it is advisable to continue receiving the Hepatitis B vaccine. Try using a 20 microgram dose of the Hepatitis B vaccine if the previous dose was 10 micrograms.