IL10 and Encephalopathy: Patients with IL-10 ≥29.1 pg/ml had higher intensive care unit admission (P<0.0001), SFTS-associated encephalopathy (P = 0.0178), lower viral clearance (P<0.0001) within the first 14 days following symptom onset, and reduced 28-day survival (P = 0.0007).