Fig. 8. Optimal combination of lockdown and testing under reduced testing capacity.

Strength and duration of the optimal lockdown, strength and duration of the optimal testing, and their impact on the epidemic varying the parameters r and c: r = 0, c = 0 (blue), r = 0, c = 1 (yellow), r = 0, c = 2 (green), and r = 1, c = 0 (red), when the capacity of the lockdown is reduced. (A) The strength and duration of the optimal random lockdown. (B) The production relative to initial production level. (C) The strength and duration of the optimal random testing. (D) The share of hospitalized individuals. The values of the economic and epidemiological parameters are described in Table 1.