“…There are 54 simulation papers using SDM, accounting for 14.5% of all selected research, where one paper used a simple SIR model (Pornphol & Chittayasothorn, 2020 ), one paper used a SIRD model (Ibarra‐Vega, 2020 ), two papers used a classic SEIR model (Kumar, Priya, & Srivastava, 2021 ; Yusoff & Izhan, 2020 ) and seven papers constructed a SEIRD model (Abdolhamid et al, 2021 ; Khairulbahri, 2021 ; Liu et al, 2021 ; Mutanga et al, 2021 ; Struben, 2020 ; Sy et al, 2021 ; Zhao et al, 2020 ). In the modified papers, new states such as pre‐symptomatic (Rahmandad et al, 2021 ), asymptomatic (Fair et al, 2021 ; Sy et al, 2020 ), symptomatic (Currie et al, 2020 ; Fair et al, 2021 ), quarantined (Currie et al, 2020 ; Kumar, Viswakarma, et al, 2021 ; Qian et al, 2021 ), isolated (Niwa et al, 2020 ), hospitalized or in treatment (Hu et al, 2021 ; Qian et al, 2021 ; Rahmandad et al, 2021 ) and vaccinated (Brereton & Pedercini, 2021 ; Suphanchaimat, Tuangratananon, et al, 2021 ) were introduced into the models.…”