Vivek Murthy, US President-elect Joe Biden's pick for Surgeon General, has said there is no evidence to suggest that a new and more contagious coronavirus variant reported in the UK is any deadlier.Murthy, 43, said that there was no reason to believe that the coronavirus vaccines that have already been developed would not be effective against the new strain as well."This news from the UK appears to be about a new strain of the virus that’s more transmissible, more contagious than the virus we’ve seen prior to this," he said."While it seems to be more transmissible, we do not have evidence yet that this is a more deadly virus to an individual who acquires it," Murthy told NBC News on Sunday.Several countries have announced restrictions on UK.