Figure 2

Mechanistic versus classical model. The bars show the average difference between the expected number of secondary cases of the mechanistic model SC _mech and that of the classical model SC _clas when normalized by the basic reproduction number R₀ and grouped by the number of contact partners S. The sequence of reproduction numbers R₀ within each category S goes from R₀ = 1.5 on the left (light grey bars) to R₀ = 6.0 on the right (black bars) in steps of 1.5. The line shows how many person days with exactly S contact partners exist in the sample.