Patient's question:
Father has hepatitis B surface antigen positive, 5 years ago he got vaccinated at the hospital. Does the vaccine have an expiration date? How long is it approximately, and is it necessary to get another shot?Doctor's answer:
Everyone has a different constitution, and the validity period varies accordingly. Generally, it is about 5 years. As long as you are anesthetized, you need to get a booster shot for the hepatitis B vaccine every 3 years. For patients, if the liver disease condition is severe, immediate symptomatic treatment should be provided, with appropriate medication. Otherwise, it may lead to a recurrence of liver disease. In addition, patients also need to pay attention to their diet and psychological care. It is hoped that the answers to the above questions can help everyone. Thank you.