Fig. 4
Model 4: Zika Model with human and mosquito populations – The human population (subscript h) is divided into 5 classes: susceptible (Sh), asymptomatically infected (Ah), exposed (Eh), symptomatically infectious (Ih1), convalescent (Ih2), or recovered (Rh). Class C represents the auxiliary variable C(t) and tracks the cumulative number of newly infectious individuals. The mosquito, or vector, population (subscript v; outlined in dark blue) is divided into 3 classes: susceptible (Sv), exposed (Ev), and infectious (Iv) classes. Parameter(s) above arrows denote the rate individuals/vectors move between classes. Parameter descriptions and values are found in Table 4