Administration of vaccine/placebo regimen
The unblinded study nurses prepared the vaccine/placebo according to the randomization list and the blinded study nurses administered them immediately. Both the vaccine and the placebo were given as a two-dose regimen 14 ± 7 days apart, the first dose at visit V1 and the second at V2. The second dose was given 7–30 days before departure to Benin. A new dose was administered to anyone who vomited within an hour after ingestion of the vaccine/placebo.Demographics (ITT population, SD = Standard Deviation
