AstraZeneca vaccine linked to rare blood clots, EU regulators conclude - Enlarge / Vials of the AstraZeneca COVID-19 vaccine are seen during the opening o... - https://arstechnica.com/?p=1755214 #johnson&johnson #immuneresponse #astrazeneca #sideeffects #adenovirus #platelets #clotting #covid-19 #science #heparin #vaccine #ema