Science has led us to the brink of beating Covid-19. Let’s not jeopardise it | Patrick Vallance

Rejoice at the worldwide success of research and technology, but if we don't follow the rules it could all be for nothing

Nearly a year after the pandemic started, it was a moment of hope when Margaret Keenan - a 90-year-old grandmother, and resident of Coventry for 60 years - received what she described as an early birthday present". She was the first person to receive an approved vaccine against Covid-19 and her name will rightly be recorded in the history books.

This is also a moment to recognise the thousands of scientists and engineers behind the many vaccines that are now emerging, and the many thousands of volunteers who have selflessly taken part in clinical trials. Clinical trials are the way to find out what works and what doesn't, for both vaccines and therapeutics, and are essential to our response.

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