We finally analyzed cytokine profiles of the VITT patient and control patients and stratified the different cytokines in clusters associated to vaccination (IP-10, IL-6, IL-15) (21, 32), COVID-19 (G-CSF, IL-12, IL-8) (33–36), NET-formation (IL-6, IL-8, TNF-α, IL-17A) (37–39), LL-37 stimulation of immune cells (MCP-1, IL-8, IL-5, IL-1β, TNF-α) (39) and DNase activity (IL-6, IL1β, TNF-α, IFN-γ) (40, 41). Here, IL15 is linked to COVID-19.