U.K. Says AstraZeneca Shot Safe Even After 7 Blood Clot Deaths

The U.K. confirmed seven people had died from rare blood clots after receiving AstraZeneca Plc’s Covid-19 vaccine and Australia is also investigating a case of clotting, raising questions about the safety of the widely used coronavirus shot.

The U.K.’s Medicines and Healthcare Products Regulatory Agency said Saturday that of 30 cases of clotting and low blood platelets identified in people in the U.K. who had received the shot through March 24, seven had died. More than 18 million doses have been administered in the country and the regulator insists the shot is safe.

“The benefits of Covid-19 Vaccine AstraZeneca ...