US Case Reports of Cerebral Venous Sinus Thrombosis With Thrombocytopenia After Ad26.COV2.S Vaccination, March 2 to April 21, 2021

This case series describes first 12 reported cases following Ad26.COV2.S vaccination in US. It notes that in many respects, the clinical presentation and lab features were similar to those seen in Europe after ChAdOx1 nCoV-19 vaccine, another adenoviral vector COVID-19 vaccine.

Journal of the American Medical Association