“…Many papers create sub-groups or sub-compartments of the Exposed compartment, such as in age stratified models, or models with multiple strains of transmissible agents, or models with temporarily asymptomatic and permanently asymptomatic persons. Although referred to as sub-compartments of the Exposed compartment, such groups are actually sub-compartments of the already infected (Latent) compartment ( Abernethy & Glass, 2022 ; Berger, & HerkenhoffHuangMongey, 2022 ; Dias, & QuelrozArujo, 2022 ; Lyra et al., 2020 ; Pinky & Dobrovolny, 2022 ).…”