astrazeneca covid-19 vaccine trial volunteer has to, brazil health authority says
astrazeneca covid-19 vaccine trial volunteer has to, brazil health authority says
an employee is seen at the reference center for special immunobiologicals of the federal university of sao paulo where the trials of the oxford/astrazeneca coronavirus vaccine are conducted, in sao paulo on june 24, 2020.amanda perobelli / reuters file oct. 21, 2020, 5:40 pm utc / updated oct. 22, 2020, 12:29 pm utc by sara g. miller a volunteer in astrazeneca's covid-19 vaccine trial has died in brazil, the country's national health surveillance agency said wednesday.", "(photo by vincenzo pinto / afp) (photo by vincenzo pinto/afp via getty images) brazil (newsnation now)  brazilian health authority anvisa said on wednesday that a volunteer in a clinical trial of the covid-19 vaccine developed by astrazeneca and oxford university has died, stating it had received data from an investigation into the matter."


































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