Mechanistic versus classical model. The bars show the average difference between the expected number of secondary cases of the mechanistic model SC
and that of the classical model SC
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.