Article: Hepatitis A Vaccine

HEPATITIS A VACCINE

Hepatitis A vaccine is prepared by inactivating hepatitis A viruses grown in cell culture. Two injections at intervals of approximately six months induce protection in 90 percent or more of recipients. Whether booster doses will be needed is not yet known. Soreness at the injection site is common and headaches are reported in up to 16 percent of recipients, but no significant adverse events are known to be caused by hepatitis A vaccine. The vaccine is recommended for persons at increased risk for hepatitis A, including children living in areas of the United ...

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