Skip to main content
. 2021 Sep 1;4(9):e2123374. doi: 10.1001/jamanetworkopen.2021.23374

Figure 1. Compartmental Epidemiologic Model.

Figure 1.

The Local Epidemic Modeling for Management & Action (LEMMA, version 2.1) model used in this analysis was a compartmental model of the COVID-19 epidemic with a susceptible-exposed-infectious-removed structure and several additional compartments. The infectious component was composed of 2 compartments for those who will be hospitalized (Ipreh) or will not be hospitalized (Imild). The hospitalized component was composed of 2 compartments representing admission to the intensive care unit (ICU) (Hicu) or no admission to the ICU (Hmod) within the hospital. Finally, the recovered component included a compartment for those who remained alive (Rlive) and those who were deceased (Rmort). E indicates exposed; I, infectious; R, removed; and S, susceptible.