The Model

Model Overview

This model tracks susceptibles, infected and recovered of 2 different types. Think of those types as e.g. males/females, children/adults, etc.

The following compartments are included, twice for each type (i=1,2):

The included processes/mechanisms are the following:

Model Implementation

The flow diagram and equations describe the model implemented in this app:

Flow diagram for this model. Natural births and deaths are not drawn.

Flow diagram for this model. Natural births and deaths are not drawn.

\[\dot S_1 = - S_1 (b_{11} I_1 + b_{21} I_2) + w_1 R_1 \] \[\dot I_1 = S_1 (b_{11} I_1 + b_{21} I_2) - g_1 I_1 \] \[\dot R_1 = g_1 I_1 - w_1 R_1 \] \[\dot S_2 = - S_2 (b_{22} I_2 + b_{12} I_1) + w_2 R_2 \] \[\dot I_2 = S_2 (b_{22} I_2 + b_{12} I_1) - g_2 I_2 \] \[\dot R_2 = g_2 I_2 - w_2 R_2 \]