Statistically significant difference of median IL-10 levels was also observed between control group individuals without roseoloviruses infection and patient group with HHV-7 infection (>10 copies/106 cells) (15.5, IQR: 7.3–22.0 and 34.5, IQR: 21.0–40.3 pg/mL, respectively, p = 0.013, KW). Here, IL10 is linked to HHV-7 infectious disease.