IL6 and HIV infectious disease: In research involving HIV-infected patients, IL-6 in plasma of PLWH prior to ART initiation (median: 2.7 pg/mL; IQR: 0.9–40.6 pg/mL) was higher than those without HIV infection (median: 1.5 pg/mL; IQR: 0.5–11.3 pg/mL), subsequently decreasing to levels lower than those of HIV-negative participants after viral suppression (median: 1.2 pg/mL; IQR:0.3–4.0 pg/mL) (35).