By Michael Le Page
Nicolas Asfouri/AFP via Getty Images
JUST months after the coronavirus pandemic began, 10 vaccines designed to prevent covid-19 are already being tested in people, and another 114 are in development.
A vaccine that provides effective, long-lasting protection against the coronavirus would be a game-changer, far better than any treatment. “Do we need a vaccine? Absolutely we do. It’s really better to prevent,” says Peter Horby, who is leading a UK trial evaluating several covid-19 treatments.
However, we don’t yet know whether it is possible to induce long-lasting coronavirus immunity with …
