COPENHAGEN - A 60-year old Danish woman who died of a blood clot after receiving AstraZeneca's Covid-19 vaccine had "highly unusual" symptoms, the Danish Medicines Agency said late on Sunday.
It said the woman had a low number of blood platelets and clots in small and large vessels, as well as bleeding.
European vaccination programmes have been upset in the last two weeks by reports that recipients of the AstraZeneca inoculation have suffered blood clots.
The Netherlands has also joined a fast-growing list of countries suspending use of AstraZeneca's Covid-19 vaccine after reports of unexpected possible side effects from the injection.
The European Medicines Agency has said there is no indication that the events were caused by the vaccination, a view that was echoed by the World Health Organization on Friday.
In related news, AstraZeneca said on Sunday a review of safety data of people vaccinated with its Covid-19 vaccine has shown no evidence of an increased risk of blood clots.
The Dutch organisation tasked with reporting adverse drug reactions said on Monday it has had 10 reports of incidents after vaccinations with AstraZeneca, following the Dutch government's decision to pause use of the vaccine as a precaution.
The Pharmacovigilance Centre Lareb said in a statement side effects seen in the Netherlands include possible cases of thrombosis or embolisms, but not of a lowered number of platelets, as has been reported reported in Denmark and Norway.