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You can expect the hepatitis B vaccine to provide protection against infection for at least 23 years. Although the antibodies created by the vaccination will eventually decay and disappear from your system, studies have shown your immune system remembers how to make more antibodies. If you have a healthy immune system, you should be safe from hepatitis B infection indefinitely.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.