Brazil authorizes trials with 3rd dose of AstraZeneca COVID vaccine

Reading Time: < 1 minute Brazil’s health regulator Anvisa said on Monday that it has approved trials with a third dose of the AstraZeneca vaccine against COVID-19. Anvisa said a third dose of the vaccine would be administered to 10,000 volunteers between 11 and 13 months after the second shot. Photo: . EPA-EFE/FABIO MOTTA