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Protection from hepatitis B infection begins with the first injection, but it is critical you complete the schedule of booster shots to ensure full immunity. If you are exposed to hepatitis B before you get vaccinated, or during the window between vaccination and full protection, you can get a special shot within 24 hours of exposure that will provide short-term protection. This is called hepatitis B immunoglobulin and it provides protection for three to six months, enough time to get started on the standard series of three vaccinations.
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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.