About the Study
The purpose of this clinical trial is to help develop a vaccine for prevention of acute gastroenteritis (AGE), also known as the stomach flu, caused by infection with norovirus. Currently, no vaccine is available for prevention of infection with norovirus.
The Phase 2 part of the clinical trial will consist of 2 periods: the base period and the booster extension period. You may have the option to continue in the booster extension period, depending on your eligibility as determined by your trial doctor.