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. 2021 Sep 23;152:111458. doi: 10.1016/j.chaos.2021.111458

Table 1.

Description of the model compartments.

Compartment Description
SU Unmasked susceptible
SM Masked susceptible
EU Unmasked exposed
EM Masked exposed
IU Unmasked symptomatically infected
IM Masked symptomatically infected
AU Unmasked asymptomatically infected
AM Masked asymptomatically infected
IH Hospitalized
IICU Admitted to Intensive Care Units
R Recovered
D Death