"In this study the hepatitis A vaccine was shown to be highly effective after one dose and, after one booster, to confer persistent protection and long-term outbreak control. During six years of follow-up, no vaccine recipient ahs had hepatitis A despite community exposure."
CITATION STYLE
Werzberger, A., Kuter, B., & Nalin, D. (1998). Six Years’ Follow-up after Hepatitis A Vaccination. New England Journal of Medicine, 338(16), 1160–1160. https://doi.org/10.1056/nejm199804163381615
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