One month post-dose-3 , anti-CS antibody geometric mean titres ( GMT ) for the 3 commercial scale lots were 319.6 EU/ml ( 95 % confidence interval ( CI ) : 268.9-379 .8 ) , 241.4 EU/ml ( 207.6-280 .7 ) , and 302.3 EU/ml ( 259.4-352 .3 ) .