Denmark has ceased giving the Oxford-AstraZeneca COVID-19 vaccine amid concerns about rare cases of blood clots.
It is the first European country to do so fully.
The move is expected to delay the country's vaccination programme by several weeks.
Drug watchdog the European Medicines Agency last week announced a possible link with clots but said the risk of dying of COVID-19 was much greater.
Several European countries had previously briefly suspended the jab.
Most have now resumed vaccinations with AstraZeneca, but often with limits to older age groups.
The World Health Organisation says at this time, it considers that the benefits of the AstraZeneca vaccine outweigh its risks and recommends that vaccinations continue.
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