F2 and infection: Compared with those in uninfected patients, the following changes were observed in the Omicron-infected patients one month after infection: before surgery, elevated PTa, PT, fibrinogen, albumin/globulin, ALT, MCHC, and PLT and anemia were observed; conversely, decreased AST/ALT ratio; IBILI, eosinophils, and uric acid were observed.