Nation AstraZeneca vaccine safe, Europe regulator says; Michigan’s case rate is up: Live COVID-19 updates March 18, 2021March 18, 2021 Elinor Aspegren, USA TODAY Comments Off on AstraZeneca vaccine safe, Europe regulator says; Michigan’s case rate is up: Live COVID-19 updates Europe's top medicines regulator says AstraZeneca's COVID-19 vaccine is safe, despite reports of unusual blood clots. The latest COVID-19 news.