The AUC of IFI44L for distinguishing IPA patients from patients with SFTS was 0.817 (95% CI 0.718–0.916, P < 0.001), and the AUC for PI3 was 0.753 (95% CI 0.646–0.860, P = 0.0001). This evidence concerns the gene PI3 and Ito hypomelanosis.