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Viral Immunol. 2004;17(4):609-15.

Antibody response to influenza vaccination in healthy adults.

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National Influenza Center, National Institute of Hygiene, Warsaw, Poland.


The aim of this study was to assess antibody response in 184 healthy adults vaccinated with split influenza vaccine (Begrivac, Chiron Behring). Response to hemagglutinin and neuraminidase was assessed before vaccination and after 1 month by hemagglutination inhibition test and neuraminidase inhibition test. After vaccination, statistically significant increases of antibody titers, both for hemagglutinins and for neuraminidases, were observed. The post-vaccination proportion of persons with protective antihemagglutinin antibody titers ranged from 78.4%to 90.8%, while the proportion of persons with at least a fourfold increase of antihemagglutinin antibody titers ranged from 50.5% to 71.2%. All requirements of the Committee for Proprietary Medicinal Products regarding humoral response to inactivated influenza vaccine in healthy adults were fulfilled. Due to a wide range of age of the persons included in this study, the results were also analyzed in two age groups: from 20 to 45 years and from 46 to 56 years. Nevertheless, there were no statistically significant differences in antibody response between these two groups either for hemagglutinin or for neuraminidase.

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