Boris Johnson said on Monday he would plot a cautious but irreversible path out of the COVID-19 lockdown this week after the vaccination of 15 million vulnerable people.With nearly a quarter of the United Kingdom’s population now inoculated with a first dose of a COVID vaccine in a little over two months, Johnson is under pressure from some lawmakers and businesses to reopen the shuttered economy.“We’ve got to be very prudent and what we want to see is progress that is cautious, but irreversible,” Johnson told reporters. “If we possibly can, we’ll be setting out dates.” U.K.