In Race for a Coronavirus Vaccine, an Oxford Group Leaps Ahead

In the worldwide race for a vaccine to stop the coronavirus, the laboratory sprinting fastest is at Oxford University.Most other teams have had to start with small clinical trials of a few hundred participants to demonstrate safety. But scientists at the university's Jenner Institute had a head start on a vaccine, having proved in previous trials that similar inoculations -- including one last year against an earlier coronavirus -- were harmless to humans.That has enabled them to leap ahead and