Covid-19 upended life in high-income countries in many ways. For somewhere between one and two years – depending on which country you’re talking about and how you count it – everyday life was put in second place to minimising the risks, known and unknown, of the new disease. More than five years on from the initial lockdowns, much of everyday life has returned to normal. There are a few who wear masks habitually now who wouldn’t have done so before. And there is probably a better general awareness of contagion and routes to infection. But many, each week, will pass…