"It can not be ruled out. that there may be a connection between the vaccine and the very unusual disease picture that we are looking at", Danish Medicines Agency director Tanja Erichsen told a press briefing on Thursday.
Amid the fresh spike in COVID-19 cases, the Union Health Ministry on Wednesday said that a novel variant of coronavirus had been detected in India in addition to several other variants of concern (VOCs) found overseas.
Most have since restarted after the European Medicines Agency said the vaccine doesn't increase the overall incidence of blood clots, though it did not rule out a connection to some rare clots.
Denmark was among the first countries in Europe this month to suspend the use of the vaccine after reports of a small number of unusual cases of blood clots, registered both in Denmark and elsewhere.
AstraZeneca had been counting on findings from a predominantly USA study of 32,000 people to help rebuild confidence in its shot, which is crucial to global efforts to end the coronavirus pandemic since it is cheap, easy to store and a pillar of the COVAX initiative aimed at bringing vaccines to low- and middle-income countries. That determination led most countries that had put a pause on the vaccine to resume immunizations with it.
Sweden's Public Health Agency said Thursday it would resume giving AstraZeneca jabs to people over age 65 but it was recommending continuing to keep them on hold for other age groups while awaiting additional data.
Approximately 150,000 people had already received AstraZeneca's shot in Denmark before it was suspended earlier in March.
"The vaccine is very useful for the elderly as many become seriously ill with COVID-19 every day", the Swedish agency's director, Johan Carlson, said in a statement.
But the ultimate arbiter of the AstraZeneca data will be the U.S. Food and Drug Administration.
More women than men would say no, according to the survey.
He said AstraZeneca had "never had credit" for its early decision not to profit from the vaccine and that repeated attacks from the European Union and figures including Emmanuel Macron have called it into question. A survey this week indicated that one in three Danes would decline using the AstraZeneca vaccine.
"Many may wonder whether we are overcautious".
Officials in Ireland had said the decision to pause the use of the vaccine had been made on a precautionary principle.
"This is really what you call an unforced error because the fact is this is very likely a very good vaccine", Fauci said, speaking on Tuesday on Good Morning America.