http://www.sciencemag.org/news/2021/03/could-rare-clotting-disorder-dash-worlds-hopes-astrazenecas-covid-19-vaccine

A man receives a dose of AstraZeneca's COVID-19 vaccine at a conference center in Rome on 24 March. Italy halted use of the vaccine on 15 March but resumed immunizations four days later.

Science’s COVID-19 reporting is supported by the Heising-Simons Foundation.