The GACVS COVID-19 subcommittee met virtually on 16 and 19 March 2021 to review available information and data on thromboembolic events (blood clots) and thrombocytopenia (low platelets) after vaccination with the AstraZeneca COVID-19 vaccine.
WHO Global Advisory Committee on Vaccine Safety (GACVS) COVID-19 subcommittee reviews safety signals related to the AstraZeneca COVID-19 vaccine

