A 2011 film "Contagion" with Matt Damon and Gwyneth Paltrow, Jude West, showed vaccine supplies so inadequate in a pandemic that the limited supply had to be given out in lottery system.
This idea of prioritization stuck in the minds of planners in Britain including Health minister Matt Hancock. The idea of prioritization after the vaccine was manufactured and distributed caused British health authorites to seek the advice of Britain's best health scientists and clinicians. Hancock says "we ask the clinicians and we do it on the basis of how we can save the most lives most quickly." Britain concentrated on ensuring the most supplies to vaccinate every British citizen with two doses very early during the time when the vaccine was being developed.
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