Summary of study components
| Study component | Study component description |
| A | Enhanced surveillance system |
| B | Pathogen testing |
| C | Individual norovirus risk factor study |
| D | Microbiota as a risk factor for norovirus infection and/or disease |
| E | Transmission dynamics study |
| F | Norovirus outbreak risk factors |
| G | Quantitative assessment of the impact of norovirus outbreaks |