Figure 1.

Evolution of the number of infective vectors (top) and the number of new viraemic hosts per day (bottom) using the individual-based model (open squares) without spatial parameters and the discrete-time version of the classical differential equation model (the daily number of new viraemic hosts being $c_{\text{h}\to \text{v}}{V}_{\text{i}}(t-t_{\text{IIP}})H_{\text{s}}(t-t_{\text{IIP}})/H$, where H_s is the number of susceptible hosts and t_IIP the intrinsic incubation period).