Derivation of l-i SEIR model equations from l-i AIR model equations

I presented a l-i SEIR epidemiological model recently (Liu X (2023) PloS one, 18(6): e0287196.). The l-i SEIR model was derived from the previously published l-i AIR model (a. Liu X (2021) Results Phys 20: 103712. b. Liu X & DeVries AC (2021) Research Square, https://www.researchsquare.com/article/rs-310822/v1). I described the derivation process step by step in detail in version 1 (https://data.mendeley.com/datasets/czx3p9gphh/1), but I missed a superscript "s" in the 4 variable names in line 38. In this version, the superscript "s" has been added to all 4 variable names.