En Brasil, voluntarios para prueba de vacuna esperan salvar vidas Pablo Perez diciembre 24, 2020 A small shopping basket filled with vials labeled “COVID-19 – Coronavirus Vaccine” and medical sryinges are placed on a AstraZeneca logo in this illustration taken November 29, 2020. Picture taken November 29, 2020. REUTERS/Dado Ruvic/Ilustration Clique aqui para ver articulo original Author: Pablo Perez
