TABLE 3.

Geometric mean IgG concentrations against OMVs from strain 44/76 as measured by ELISA

Vaccine groupPre-vacc.a6 wk after 2nd dose6 wk after 3rd dose10 mo after 3rd dose6 wk after 4th dose1 yr after 4th dose
GMCb (95% CI)nGMC (95% CI)nGMC (95% CI)nGMC (95% CI)nGMC (95% CI)nGMC (95% CI)n
MenBvac18 (16-19)227995 (902-1,097)2271,136 (1,027-1,256)221251 (223-282)2071,738 (1,574-1,920)202460 (409-518)187
Placebo18 (15-20)12017 (15-19)12016 (14-19)11641 (35-48)11041 (35-48)10740 (35-47)94
  • a Pre-vacc., prevaccination.

  • b Expressed in units per milliliter.