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Where is hepatitis A vaccine injected?

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Hepatitis A vaccine is administered by injection into the muscle of the upper arm. Two separate shots of 0.5 ml for children and 1 ml for adults are required and should be given 6 to 12 months apart (Havrix) or 6 to 18 months apart (Vaqta). Hepatitis A vaccine may be given at the same time as other vaccines.
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