Predicted incidence over time across different extended SIR models and parameters.

Note that different levels of δ are depicted column-wise, while different extended SIR models are depicted row-wise. Different levels of γ and ζ vary within each panel A-I. Please also note that, in the interest of simplicity, only corresponding parameter combinations, i.e. (γ1, ζ1), (γ2, ζ2) and (γ3, ζ3), are depicted.