Matt Ridley in The Spectator:
Almost 60 years ago, in February 1961, two teams of scientists stumbled on a discovery at the same time. Sydney Brenner in Cambridge and Jim Watson at Harvard independently spotted that genes send short-lived RNA copies of themselves to little machines called ribosomes where they are translated into proteins. ‘Sydney got most of the credit, but I don’t mind,’ Watson sighed last week when I asked him about it. They had solved a puzzle that had held up genetics for almost a decade. The short-lived copies came to be called messenger RNAs — mRNAs – and suddenly they now promise a spectacular revolution in medicine.
The first Covid-19 vaccine given to British people this month is not just a welcome breakthrough against a grim little enemy that has defied every other weapon we have tried, from handwashing to remdesivir and lockdowns. It is also the harbinger of a new approach to medicine altogether. Synthetic messengers that reprogram our cells to mount an immune response to almost any invader, including perhaps cancer, can now be rapidly and cheaply made.
More here.