As depicted in Figure 1, COVID‐19 children exhibited significantly decreased levels of IFNγ, IL‐2, TNF‐α, IL‐1α, IFNα, IFNβ, IL‐6, IL‐12, IL‐3, IL‐7, IL‐1Ra, IL‐13, IL‐10 and increased levels of IL‐1β, IL‐33, IL‐4, IL‐5, IL‐25 as compared with elderly individuals. Here, IL33 is linked to COVID-19.