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How long does the Hepatitis A vaccination last?

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The most common side effect of the hepatitis B vaccine is soreness at the site of the injection. Since 1982, when the hepatitis B vaccine became available in the U.S., more than 100 million people have been vaccinated with no report of serious side effect. read more

The exact duration of protection after vaccination is unknown. Anti-HAV has been shown to persist for at least 20 years in adults administered inactivated vaccine as children with the three-dose schedule , and anti-HAV persistence of at least 20 years also was demonstrated among persons vaccinated with a two-dose schedule as adults (20). read more

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