Need 2 doses: After one dose of hepatitis vaccine most people (over 90%) have some protection against hepatits a infection. In order to make this protection durable (last life-long) you will need a second dose 6 months later. Mark you calendar, get the second dose and enjoy the peace of mind knowing you are protected. If it has been longer than 6 months, you can still get the second dose.
Answered 1/29/2014
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