As Barcelona faces lockdown, it’s likely that the UK, too, will experience a second wave

There is absolutely no reason whatsoever why we could not see the same phenomenon playing out in London or other UK cities in the weeks to come, especially as restrictions continue to be eased. I may sound like a broken record but it really is crucial that we have a foolproof test-and-trace system, or else an outbreak will emerge and we will not be able to control its spread.