Paused for further review due to reported 6 cases in the U.S. of an extremely rare type of blood clot in the brain called CVST (Cerebral Venous Sinus Thrombosis) along with low platelets (VITT). More details:
https://www.fda.gov/news-events/press-announcements/joint-cdc-and-fda-statement-johnson-johnson-covid-19-vaccine