An undated handout picture released by the University of Oxford on November 23, 2020 shows a technician working on the University's COVID-19 candidate vaccine, known as AZD1222, co-invented by the University of Oxford and Vaccitech in partnership with pharmaceutical giant AstraZeneca. AFP/ University of Oxford
An undated handout picture released by the University of Oxford on November 23, 2020 shows a technician working on the University's COVID-19 candidate vaccine, known as AZD1222, co-invented by the UniShow more

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