Countries around Europe are seeking further clarification on the safety of the Oxford-AstraZeneca Covid-19 vaccine, amid criticism of their decision to suspend giving the jab.

France, Germany, Spain and Italy have said they are awaiting an investigation by the EU’s regulator into reports of clots in a small number of recipients. But other EU members, including Poland and Belgium, are continuing its use. The European Medicines Agency (EMA) will release its findings on Thursday. On Tuesday, the EMA said it was still “firmly convinced” of the benefits of the AstraZeneca drug. Its head, Emer Cooke, pointed out that blood clots highlighted by some countries were relatively common in the general population.

“I want to stress at present there is no indication that vaccination has caused these conditions,” she said. In a joint statement later on Tuesday, French President Emmanuel Macron and Italian Prime Minister Mario Draghi said the EMA’s comments were “encouraging”. Meanwhile, experts from the World Health Organization (WHO) were also meeting on Tuesday but a spokesman stressed there was “no evidence” that the reported blood clots were linked to the vaccine.

The WHO has urged countries not to pause their vaccinations. The suspensions come as much of Europe struggles to control rising cases. In the UK, more than 11 million people have already received at least one dose of the AstraZeneca vaccine and there has been no sign of excess deaths or blood clots occurring.

What action are countries taking?

Some 13 European countries have paused their use of the vaccine. Denmark was first, followed by Norway and Iceland. Germany, France, Italy, Cyprus, Spain, Latvia and Sweden are the latest to follow suit. On Monday, the three largest EU members – Germany, France and Italy – said they were awaiting the results of the EMA investigation before deciding whether to resume their rollout of the jab. They said they had opted to pause their use of the drug as a “precautionary measure”. “We expect some kind of verdict from the European scientific community by Thursday afternoon, allowing us to resume the campaign,” French Health minister Olivier Véran said on Tuesday.

“There were a few very unusual and troubling cases which justify this pause and the analysis,” French immunologist Alain Fischer, who heads a government advisory board, told France Inter radio. “It’s not lost time.” In Germany, the health ministry also pointed to a small number of rare blood clots in vaccinated people when justifying its decision. It has postponed a summit on extending the vaccine rollout ahead of the EMA’s expected announcement on Thursday. There is as yet no evidence that the specified clots were linked to the vaccine, and the EMA has said other factors are likely behind the incidents. Other countries, including Austria, have halted the use of certain batches of the AstraZeneca drug, while Belgium, Poland, the Czech Republic and Ukraine said they would continue to administer the vaccine.

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