No guarantee of COVID-19 vaccine: British PM

A COVID-19 vaccine is by no means guaranteed, British Prime Minister Boris Johnson has said.

At a press conference on Monday night, Mr Johnson referred to the part Britain was playing in looking for a valid COVID-19 vaccine, Xinhua reported.

Asked by the media, Johnson said he hopes that a vaccine will be developed, but there is no guarantee."I'm hearing some very encouraging things from what's going on at Oxford (University) to achieve a vaccine."

"What I can tell you is that the UK is at the forefront of concerting international activity to try to deliver a vaccine," said Johnson.

The government's Chief Scientific Adviser Patrick Vallance said the chances of developing a vaccine for the disease is getting higher. But he also agreed with Johnson's comment that it was not guaranteed.