The World Health Organization says countries should not stop using AstraZeneca's COVID-19 vaccine over fears it causes blood clots as there is no indication this is true.
Bulgaria, Denmark and Norway are among the countries that have paused its use.
But a WHO spokeswoman said there was no link between the jab and an increased risk of developing a clot.
Margaret Harris said it was an excellent vaccine and should continue to be used.
Around 5 million Europeans have already received the AstraZeneca jab.
There have been about 30 cases in Europe of people developing blood clots after the vaccine was administered. There were also reports that a 50-year-old man had died in Italy after developing deep vein thrombosis.
The WHO is investigating the reports, as it does any safety questions.
Harris says no causal relationship had been established between the shot and the health problems reported.
She adds an analysis of their safety data of more than 10 million records has shown no evidence of an increased risk of pulmonary embolism or deep vein thrombosis.
Bulgaria's decision to pause its rollout followed similar steps by Denmark, Iceland and Norway as well as Thailand. Italy and Austria have stopped using certain batches of the drug as a precautionary measure.
The European Medicines Agency, the EU's medicines regulator, said earlier there was no indication the jab was causing the blood clots.
Other countries, including the UK, Germany, Australia and Mexico, have said they are continuing their rollout.
These pauses for the AstraZeneca vaccine are not because it is unsafe to give.
It's to allow time for experts to explore why a small number of people who were recently given the shot also developed blood clots.
[Source: BBC]
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