What is the typical dosage for the hepatitis A vaccine?

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The typical dosage for the hepatitis A vaccine is 1 milliliter (mL) for adults and 0.5 mL for children. Protection generally starts two weeks after the first dose. You'll need a booster shot six to 12 weeks later to ensure complete protection.

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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.