By the beginning of April, Oxford had enough vaccine to launch clinical trials. Andrew Pollard, the head of the Oxford vaccine group, who has spent 20 years running clinical trials, prepared and oversaw them. His team worked with doctors at 19 trial sites around the UK and six each in Brazil and South Africa to get the trials done. That month, the first shots went into volunteers.
Today, seven months later, the scientists can say that it works.
How a handful of scientists developed Oxford vaccine at breakneck speed .. built on decades of research pioneered by Sarah Gilbert and Adrian Hill.