Ireland became the latest country to stop using AstraZeneca’s Covid-19 vaccine on Sunday, temporarily suspending the shot “out of an abundance of caution” after reports from Norway of serious blood clotting in some recipients there.

Three health workers in Norway who had recently received the AstraZeneca Covid-19 vaccine were being treated in hospital for bleeding, blood clots and a low count of blood platelets, its health authorities said on Saturday...