%0 Letter %T A Commentary on "Omicron SARS-CoV-2 variant: Reasons of emergence and lessons learnt" (Int J Surg 2022;97:106198) Contact-tracing and global vaccine equity: Crucial responses to emergence of the Omicron SARS-CoV-2 variant. %A Rahimi F %A Bezmin Abadi AT %J Int J Surg %V 98 %N 0 %D 02 2022 %M 35123010 %F 13.4 %R 10.1016/j.ijsu.2022.106244 %X