Hepatitis A vaccine can prevent infection even AFTER exposure
January 2008
Hepatitis A vaccine can prevent infection even AFTER exposure.
The CDC used to recommend giving immune globulin after exposure to prevent infection. Now they recommend giving hepatitis A vaccine (Havrix, Vaqta) instead for many patients.
The vaccine is slightly LESS effective...about 95% as effective as immune globulin when given within 14 days.
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