Table 2. List of model parameters and their values.
| Parameter | Notation | Value | Sources |
| Contact rate | β | Estimated | - |
| Susceptibilities by age-group | (ρ1, ρ2, ρ3, ρ4, ρ5) | (1, ρ2, ρ3, ρ4, ρ5) Estimated | - |
| Assortative mixing rate (model variant M1) | θ | 0.25 | |
| Generation time | w() | Mean = 2.6, sd = 1.3 | [13] |
| Number of individuals in age-groups | (N1, N2, N3, N4, N5) | Fixed for each country | (cf table S1) |
| Number of individuals in considered country | N | Fixed for each country | (cf table S1) |
| Reporting rate | preport | Estimated for each country | - |
| Initial number of cases in the model | y0 | Estimated for each country | - |
| Baseline for ILI | BL | Estimated for each country | - |