Here is a research article that was rushed to print in the July 7, 2021 Nature that describes the precise pathophysiology of vaccine-induced immune thrombotic thrombocytopenia [VITT]. VITT is the critical 1/60,000 incidence adverse event associated with the adenoviral vector employed in the Astra-Zeneca and Johnson and Johnson vaccines, among others. VITT resembles heparin-induced thrombocytopenia with thrombosis [HIT]. Click here for the free-circulation preview article: Huynh A, Kelton JG, Arnold DM, Daka M, Nazy l. Antibody epitopes in vaccine-induced immune thrombotic thrombocytopenia. Nature 2021 https://doi.org/10.1038/s41586-021-03744- 4.