Fig. 3.
Input−output setting: imports arrive through transport, are potentially funnelled through quarantine, then enter one of the infected compartments. The three types of outcomes considered are shown on the right. In the epidemic model, compartment S represents susceptible individuals, L1 and L2 are latent individuals, I1 and I2 are detected infectious individuals, A1 and A2 are undetected infectious individuals, D are deaths from detected infections or posthumously tied to the infection; finally RI and RA are recovered from detected and undetected infections, respectively.