Patient's question:
Boy, six, has received three normal injections of hepatitis B vaccine according to the planned immunization schedule after birth. However, two lab tests in May and September this year revealed that the child did not produce antibodies. Without antibodies, the hepatitis B vaccine is ineffective.Doctor's answer:
According to your description, the lack of antibodies and vaccine response after receiving the hepatitis B vaccine is related to the body's immunity. It can be re-administered. It is recommended that if the hepatitis B vaccine does not produce antibodies, you can switch to a hepatitis B vaccine from another manufacturer, or receive a high-dose 60 mcg vaccine. After vaccination, check the antibodies in one month. Personally, I suggest finding a time to take your child for vaccination to see if it works, and try to avoid sharing utensils with others as much as possible.