Does it matter if the hepatitis B vaccine is given late?

Patient's question:

Does it matter if the hepatitis B vaccine is given late? Do I need to go to the hospital for treatment? How long does it take to recover? Please help me!

Doctor's answer:

Hello, if you are recommended to get the hepatitis B vaccine, it is still best to follow the course and schedule. If you delay the injection by a few days, it may not rule out the impact on antibody production. It is still advisable to follow the doctor's advice for vaccination. In special circumstances, you can delay the injection by a few days, but it should not exceed one week. It is not ideal if it exceeds one week. As long as it is not too late, it is still effective. After vaccination, it is recommended to go to the hospital to check for antibodies, as some people may not produce antibodies after vaccination and may need to be revaccinated. The principle of vaccination is that it cannot be administered prematurely. The interval between two-dose regimens must be greater than 28 days. It is acceptable to delay by a few days, for example, if you encounter vaccination contraindications, you must postpone the vaccination time.

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