Chen et al. found in a sample of 48 patients that increased levels of IL-6 significantly correlated to disease severity [12]. Another study reported a significant association between lymphopenia and increased IL-6 levels in COVID-19 non-survivors compared with survivors. [12,13] These findings suggest monitoring IL-6 levels to evaluate cytokine storm as a prognostic tool [12]. However, it is likely that physicians do not routinely follow IL-6 levels in COVID-19 patients with solid organ transplants, as it was not a commonly reported lab value in the studies we evaluated (Table 2).