Meanwhile, the Oxford vaccine is found to be “safe and effective” in peer review.
https://www.bbc.co.uk/news/health-55228422
Further tests are ongoing to increase confidence in the data that suggests a half dose followed by a full dose results in 90% efficacy. They’re concerned that the small sample of people given the half dose were all under 55 years old and might have been expected to show a stronger immune response regardless.
Nonetheless the vaccine has already been put forward for emergency approval.