RT Journal Article SR Electronic T1 Thrombotic thrombocytopenia due to SARS-CoV-2 vaccination JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic DO 10.3949/ccjm.88a.ccc078 A1 Keith R. McCrae YR 2021 UL http://www.ccjm.org/content/early/2021/05/06/ccjm.88a.ccc078.abstract AB Vaccine-induced thrombotic thrombocytopenia (VITT) has been reported after vaccination with the AztraZeneca ChAdOx1 nCoV-19 and the Johnson and Johnson Ad26. COV2.S vaccines. This manuscript provides a brief overview of reported cases, clinical and laboratory features, and current understanding of the pathogenesis of VITT. The author also poses unananswered questions and identifies directions for future study.