The writer is director of the Wellcome Trust
It is discomfiting but true that most people still underestimate the true impact of the Covid-19 pandemic. Its immediate effects are so shocking that we are all caught up in them. But the longer-term implications may be more profound still. If we are not careful, they will shake the world order to its foundations.
To understand the crisis fully, imagine the concentric ripples generated by a stone thrown into a pond.
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