Britain will offer additional Covid-19 shots to participants in clinical trials for coronavirus vaccines that have not yet been approved in order to let them travel, the health ministry said.

People enrolled in trials for shots made by the likes of Novavax and Valneva have been in limbo, as the shots have not been approved, ruling them out of agreements to allow people to travel, according to Reuters.

Britain recognises people vaccinated in vaccine trials as vaccinated for the purpose of both domestic and international certification.

It says it wants those who have received shots in trials, especially Novavax, whose phase III trial showed high-levels of protection, to be able to travel on the basis of the vaccine they have already received.