The NHS Test and Trace programme needs to be scaled up in order to reopen schools safely, researchers have said. A new modelling study has implied that reopening schools in September must be combined with a high-coverage test-trace-isolate strategy to avoid a second wave of Covid-19 later this year. The study comes as Australian research found there was “low” levels of coronavirus transmission in schools and nurseries. The modelling study – which simulates various scenarios – examined the possible implications of schools reopening in the UK coupled with broader reopening of society, such as more parents returning to the workplace and increased socialising within the community.