Long-term antibody persistence after vaccination with a 2-dose Havrix (TM) (inactivated hepatitis A vaccine): 20 years of observed data, and long-term model-based predictions Universiteit Hasselt Universiteit Antwerpen Universiteit Gent
Antibody persistence in two cohorts of adults, who received inactivated hepatitis A (HAV) vaccine (1440El.U; Havrix (TM); GSK Vaccines) according to a 0-6 or 0-12 month schedule in 1992-1993, has been measured annually. After 20 years, >97% of the subjects in both studies were seropositive for anti-HAV antibodies. Geometric mean concentrations in the according-to-protocol cohorts were 312 mIU/ml in 34/36 subjects vaccinated initially at 0-6 ...