European Officials Say AstraZeneca Vaccine Side Effects Should Include Unusual Blood Clotting

A laboratory technician supervises the large-scale production and supply of the University of Oxfords AstraZeneca COVID-19 vaccine at the Italian biologics manufacturing facility in Anagni, Italy, on Sept. 11, 2020. Vincenzo Pinto/AFP via Getty Images

The European Medicines Agency (EMA), a regulatory body of the European Union, said that the vaccine producer AstraZeneca should make mention of rare blood clots as a possible side effect.

Emer Cooke, the executive director of the EMA, said in a media briefing on Wednesday that after an in-depth examination of the vaccine, they arrived at the conclusion “that the reported cases of unusual blood clotting following vaccination with the AstraZeneca vaccine should be listed as possible side effects of the vaccine.”