epaselect epa09099960 A health worker injects a dose of the AstraZeneca vaccine against COVID19 to a teacher, in Valencia, eastern Spain, 26 March 2021. Spain resumed the use of this vaccine after a 10-day-long pause in its administration after reports stated the vaccine could be associated with an increase in the risk of blood clotting disorders, doubts that were finally ruled out by the European Union's medicines regulator that declared the vaccine as safe.  EPA/Manuel Bruque
A teacher in Valencia, Spain, receives a dose of the Covid-19 vaccine made by AstraZeneca. EPA

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