AstraZeneca's vaccine halted in six countries

Denmark became the sixth country to suspend use of AstraZenca's Covid-19 vaccination as concerns rise on blood clots. 

Denmark announced a two-week suspension ,  Iceland and Norway followed suit but did not commit to a timeline for the suspension. 

Earlier this week, a number of EU nations paused the use of doses that came from a particular batch of AstraZeneca vaccine, after a 49-year-old woman in Austria died of multiple thrombosis on Sunday. The European Medicines Agency said there was "no indication" that vaccination had been behind the cases of clotting or death.

In a statement on Thursday, AstraZeneca said that patient safety was its "highest priority."