6 21 dage efter anden vaccinedosis sås en firdobbelt stigning i serum- neutraliserende antistoftiter hos 77, 1% af personerne mod A/ Indonesia/ 5/ 2005- stammen, hos 75, 0% af personerne mod A/ Anhui/ 01/ 2005 og hos 85, 0% af personerne mod A/ Turkey/ Turkey/ 1/ 2005.
6 Twenty one days after the second dose, a 4-fold increase in serum neutralising antibody titres was obtained in 77.1% of subjects against the A/ Indonesia/ 5/ 2005 strain, in 75.0% of subjects against A/ Anhui/ 01/ 2005 and in 85.0% of subjects against A/ Turkey/ Turkey/ 1/ 2005.