Document Classification

Section Type: RESULTS

Text: One dose of the 7. 5 microg non-adjuvant split-virion vaccine induced seroprotection in 178 of 232 children (aged 3 years to < 12 years ; 76. 7 %, 70. 7-82. 0), 211 of 218 adolescents (12 years to < 18 years ; 96. 8 %, 93. 5-98. 7), 289 of 323 adults (18-60 years ; 89. 5 %, 85. 6-92. 6), and 118 of 147 adults older than 60 years (80. 3 %, 72. 9-86. 4), meeting the European Union 's licensure criteria for seroprotection in all age-groups.