March 11 - Denmark and several European countries suspend use of jab
There were also other reports of "severe cases of blood clots in people". A person was admitted to hospital in Austria with pulmonary embolism (blockage in arteries in the lungs) after being vaccinated.
But Søren Brostrøm, director of Denmark's National Board of Health, stressed that a link between the vaccine and blood clots had not been concluded, suggesting the suspension was a precaution while authorities investigated.
Norway and Iceland also announced it would suspend the use of the jab. Several other countries - Austria, Italy, Estonia, Lithuania, Luxembourg and Latvia - said they would stop using a batch of the vaccine while investigations continued.