Patient's question:
The kindergarten has been doing physical check-ups for the children recently, including blood tests. They said the child still needs to receive three more doses of the hepatitis B vaccine, but the child already received three doses of it last year. Why is it still required to get vaccinated this year? They said there are no antibodies. Is the hepatitis B vaccine required every year? Is it okay to get vaccinated so many times?Doctor's answer:
Hello, although the child received three doses of the hepatitis B vaccine last year, the current test shows that no antibodies were produced. Therefore, it is necessary to re-administer three doses of the hepatitis B vaccine in the order of 0, 1, and 6.Advice: If antibodies are produced, there is no need to get vaccinated every year. The general protective effect typically lasts for about ten years. If the antibody titer is found to decrease in the future, additional vaccination can be administered then.