Scientists involved in one of the world's leading studies into finding a vaccine for the coronavirus say there is currently only a 50% chance of success because the number of people in Britain with the virus is falling too quickly.

The Oxford University mission to find a vaccine for the COVID-19 virus is in "a race against the virus disappearing, and against time," Adam Hill, director at Oxford University's Jenner Institute, said this weekend.

Hill told The Telegraph newspaper that the number of people in the UK with the virus was falling at a rate that meant there might not be enough people to test the experimental vaccine known as ChAdOx1 nCoV-19.

"At the moment, there's a 50% chance that we get no result at all," he said.

Click here for reference