IL6 and COVID-19: Neutralizing IL-6 or its receptor by using anti-IL-6 or anti-IL-6R antibodies, respectively, is being currently investigated to help severe cases of COVID-19 that suffer from complications derived from cytokine storm (Ascierto et al., 2020; Buonaguro et al., 2020; Luo et al., 2020; Michot et al., 2020; Xu X. et al., 2020; Zhao, 2020; Zhang X. et al., 2020).