Long-term epidemic dynamics at a constant contact rate. (A) Daily new cases for two values of the initial daily multiplication coefficient, θ, and the initial number of removed (confirmed) cases, R(t = 0), equal 500. (B) Time to the worst day for three initial numbers of removed (confirmed) cases and new cases in the worst week and month. In both panels, population size N = 50 million,1∕γ = 3 days.