Hemagglutination inhibition antibody titer D0,D21,D35 [clinicaltrials_resource:872c743725498f491b3a3b54d4546162]

440 participants (110 elders, 110 adults, 110 adolescents and 110 children) to receive split-virion, non-adjuvanted H1N1 vaccine of 30 μg on day 0 and 21.

Hemagglutination inhibition antibody titer D0,D21,D35 [clinicaltrials_resource:872c743725498f491b3a3b54d4546162]

440 participants (110 elders, 110 adults, 110 adolescents and 110 children) to receive split-virion, non-adjuvanted H1N1 vaccine of 30 μg on day 0 and 21.