Volume 26, Number 8—August 2020
Research
Evaluating the Effectiveness of Social Distancing Interventions to Delay or Flatten the Epidemic Curve of Coronavirus Disease
Figure 1

Figure 1. Mathematical model illustrating study population divided into 10 age groups and stratified as susceptible (S), exposed (E), infectious (I), and removed (R) from coronavirus disease epidemic. Susceptible persons become exposed at the force of infection λ(t), progress to become infectious at rate, σ, and are removed from infecting others at rate, γ.