Is our test-and-trace system ready to stop a second spike?
We are going to hear a lot about Test, Trace and Isolate (TTI) in coming weeks, as we approach autumn and fears of a second wave of Covid-19 grow. Now we have moved away from national lockdown but do not yet have a vaccine, the test-and-trace system is our main bulwark against a resurgence of the disease. But how good a defence is it? A study published in the Lancet Child and Adolescent Health this week suggests there is a huge amount at stake. Academics attempted to model what would happen in various scenarios over the coming winter, assuming schools return either full-time or on a part-time rota basis —