++ AstraZeneca, nostro vaccino efficace contro variante Gb ++
epa08836974 A handout photo dated 20 November 2020 and made available by the Oxford University 23 November 2020, showing a vial with vaccine developed jointly by the Oxford University and AstraZeneca, Oxford, United Kingdom. The Oxford University/AstraZeneca coronavirus vaccine has an average efficacy of 70.4 per cent in preliminary results, Oxford University/AstraZeneca announced on 23 November 2020, and can be stored in a standard fridge. EPA/OXFORD UNIVERSITY / JOHN CAIRNS / HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES
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