'Coronavirus vaccine: What are human challenge trials? - BBC News'

01:15 May 29, 2021 0 0

'Human challenge trials are regarded by some as a faster way to develop vaccines - but they come with big risks.  Could they be used to speed up the development of a vaccine for Covid-19?  BBC Health Correspondent Laura Foster explains how they work.  Video by Terry Saunders, Megan Fisher and Laura Foster.  Please subscribe HERE http://bit.ly/1rbfUog' 

Tags: News , BBC , BBC News

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