https://www.siliconvalley.com/2020/12/30/uk-regulator-approves-oxford-astrazeneca-coronavirus-vaccine/

UK regulators have approved the use of the Oxford University/AstraZeneca coronavirus vaccine, which is cheaper and easier to distribute than some rivals and could in time offer a route out of the pandemic for large parts of the world.

The UK government said it would follow a new immunization strategy for the vaccine, which will prioritize giving the first in a series of two vaccine doses to as many people as possible, before administering a second dose up to 12 weeks later.