Immune system
There have been several reports that indicated meager Cytolethal Distending Toxin‐induced lymphocytes, with a density as low as 200 cells/mm3 in three patients with SARS‐CoV infection (Chu et al., 2014; Zhou et al., 2014). As in the case of SARS‐CoV‐2, it has been suspected that infection with this type of CoV might lead to inflammatory cytokine storm (Chen, Liu, et al.