IL6 and COVID-19: A retrospective, multicentre study of 150 COVID-19 patients, showed that the patients that died had higher levels of serum ferritin, C-reactive proteins, and IL-6 as compared to the survivors, indicating that hyperinflammation contributed to death (Schett et al., 2020; Stebbing et al., 2020; Vaninov, 2020).