The two, both hospital staff members, had both received the AstraZeneca vaccine less than 14 days before getting ill, the authority that runs public hospitals in Copenhagen said.
The Danish Medicines Agency confirmed it had received two “serious reports”, without giving further details. There were no details of when the hospital staff got ill.
Denmark, which halted using the AstraZeneca vaccine on March 11, was among more than a dozen countries that temporarily paused use of the vaccine after a small number of reports of cases of rare brain blood clots sent scientists and governments scrambling to determine any link.
The temporary suspension of the AstraZeneca jab over concerns that it could lead to blood clots:
slow roll-out of vaccinations and the temporary suspension of the AstraZeneca jab over concerns that it could lead to blood clots.
Some countries including Germany and France this week reversed their decision to suspend use of the vaccine following an investigation into the reports of blood clots by the European Union’s drug watchdog, which said on Thursday it is still convinced the benefits of the vaccine outweigh the risks.
Denmark – along with Sweden and Norway – said on Friday they needed more time to decide whether to use the vaccine.
“We prioritize reports of suspected serious side effects such as these and examine them thoroughly to assess whether there is a possible link to the vaccine,” Tanja Erichsen, acting director of Pharmacovigilance at the Danish Medicines Agency, said in a tweet on Saturday.
“We are in the process of dealing with the two specific cases.”
European Medicines Agency (EMA) director Emer Cooke said on Thursday the watchdog could not definitively rule out a link between blood clot incidents and the vaccine in its investigation.