Figure 15

Structure of the compartmental model. The model is based on a SEIR-type model from Ref. [58] and is extended with a convalescing (C) compartment. A person in the convalescing compartment is technically still infectious, but the chance to infect further is drastically reduced, as this person is either isolated or the viral load is too low. The sum of the specific infectious periods is given by \({T_{\mathrm {con}}}\). Untraced compartments are indicated in gray and traced compartments in blue. See Table 3 for the definitions of the variables