SEE CAPTION FOR MORE INFORMATION / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / UNIVERSITY OF OXFORD / John Cairns " - NO MARKETING - NO ADVERTISING CAMPAIGNS - RESTRICTED TO ILLUSTRATING STORIES RELATED TO THE PARTICULAR VACCINE, EVENTS AN
TOPSHOT - An undated handout picture released by the University of Oxford on November 23, 2020 shows a vial of the University's COVID-19 candidate vaccine, known as AZD1222, co-invented by the University of Oxford and Vaccitech. - Scientists behind a coronavirus jab being developed in Britain on Monday hailed it as a potential "vaccine for the world", which could be cheaper to make and easier to store and distribute than its main rivals. The University of Oxford and its pharmaceutical partner AtraZeneca, said they were seeking regulatory approval for the vaccine after it showed an average 70-percent effectiveness. (Photo by John Cairns / University of Oxford / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / UNIVERSITY OF OXFORD / John Cairns " - NO MARKETING - NO ADVERTISING CAMPAIGNS - RESTRICTED TO ILLUSTRATING STORIES RELATED TO THE PARTICULAR VACCINE, EVENTS AND FACTS MENTIONED IN THE CAPTION - DISTRIBUTED AS A SERVICE TO CLIENTS /