s <https://www.reuters.com/article/us-health- coronavirus-astrazeneca-oxford/decades-of-work-and-half-a-dose-of-fortune-drove-oxford-vaccine-success- idUSKBN2832NC> (11/23, Smout, Kelland, Burger) reports AstraZeneca "said it was a minor mistake that made the team realise how they could significantly boost the