De hyppigst indberettede bivirkninger, såsom gastrointestinale symptomer og herunder mavesmerter, diaré, tynd afføring, nausea og opkastninger, forekom med ensartet hyppighed i grupperne, der fik henholdsvis vaccine og placebo.
The most frequently reported adverse reactions, such as gastrointestinal symptoms including abdominal pain, diarrhoea, loose stools, nausea and vomiting, occurred at similar frequencies in vaccine and placebo groups.