The Issue in EuropeAn unconfirmed number of patients have developed blood clots after receiving the shot, according to health authorities. The Danish Health Authority on Thursday halted the use of the AstraZeneca coronavirus vaccine for 14 days. It follows reports of “serious cases of blood clots among vaccinated people,” a statement read. The EMA found no evidence linking the Austrian cases to the AstraZeneca vaccine, the agency said on Wednesday. Meanwhile, Italy banned the use of a batch of the AstraZeneca vaccine over the blood clot suspicions.