FILE - In this Tuesday, March 16, 2021 file photo, a woman receives a dose of the AstraZeneca COVID-19 vaccine at the Vaccine Village in Antwerp, Belgium. The European Commission has said its wants to have vaccinated a minimum of 70 percent of the entire adult population by the end of summer. But is is counting on a strong second quarter of vaccine production to reach a threshold of immunity already by the end of June. (AP Photo/Virginia Mayo, File)