Clinical pathologies of mice infected with SFTSV. Wild-type C57BL/6 (WT), Ifnar1−/−, Stat1−/−, and Stat2−/− mice were infected with 10 FFU of SFTSV (YG1). Survival (A) and body weight (B) changes were observed daily for 14 days p.i. (n = 10). For WBC and PLT counts, blood samples were collected from two male and three female mice at 0, 1, 3, 5, and 7 days p.i. The values are shown as means ± standard deviations (SDs).