Fig. 3
From: Human mobility and poverty as key drivers of COVID-19 transmission and control
Structure and fit of the transmission model. a Compartmental diagram of the transmission model. Susceptible individuals S transition to the exposed compartment with a force of infection λ, where they are infected but not yet infectious, until moving to an early infectious compartment at rate σ, in which they do not show symptoms but may transmit. Infected individuals in the early stage move to a reported IReported or unreported IUnreported infectious period, in which they may have a mild or an asymptomatic infection until death or complete recovery. For clarity of depiction, age, risk, and region stratifications are not displayed. b Time series of reported daily COVID-19 cases and model fit countrywide. c Data and model fit to the age distribution among COVID-19 infections. d Data and model fit to the 30 subdistricts covering Israel