COPENHAGEN—Health authorities in Denmark, Norway, and Iceland on Thursday suspended the use of AstraZeneca’s COVID-19 vaccine shots following reports of the formation of blood clots in some people who had been vaccinated.
Austria earlier stopped using a batch of AstraZeneca shots while investigating a death from coagulation disorders and an illness from a pulmonary embolism.
Still, the European medicine regulator EMA said the vaccine’s benefits outweighed its risks and could continue to be administered.
Europe is struggling to speed up a vaccine rollout after delivery delays from Pfizer and AstraZeneca, even as a spike in cases amid a more contagious virus variant has triggered fresh lockdowns in countries like Italy and France.
Denmark suspended the shots for two weeks after a 60-year-old woman, who was given an AstraZeneca shot from the same batch used in Austria, formed a blood clot and died, Danish health authorities said.
Their response was also prompted by reports “of possible serious side effects” from other European countries.
“It is currently not possible to conclude whether there is a link. We are acting early, it needs to be thoroughly investigated,” Health Minister Magnus Heunicke said on Twitter.
The vaccine would be suspended for 14 days in Denmark.
“This is a cautionary decision,” Geir Bukholm, director of infection prevention and control at the Norwegian Institute of Public Health (FHI), told a news conference.
FHI did not say how long the suspension would last.
