NEVER before has science touched the lives of more people than it has in the last few months. “Touched,” literally: thanks to the Covid vaccine, now already administered to about three billion people around the world, including over 400 million in India. The near-ubiquitous mobile phone has, after more than two decades of widespread availability in India, reached about a billion people; a figure that may be overtaken within a year by the number of those vaccinated.
The successful development of multiple vaccines in under a year is one of the greatest triumphs of science. Scientists from. . .
