AstraZeneca COVID-19 vaccine trial volunteer has died, Brazil health authority says Yahoo NewsAstraZeneca close to restarting Covid-19 vaccine trial in U.S. POLITICOVolunteer in AstraZeneca Covid-19 vaccine trial dies in Brazil NBC NewsNews Updates: AstraZeneca Vaccine Trial Death, Stimulus Talks Continue to Move Forward Barron'sVolunteer in Oxford COVID-19 vaccine trial has died, Brazil health authority says ReutersView Full Coverage on Google News