Over the past week, nearly 9 million children have returned to school across England and Wales amid much excitement and uncertainty. Local transmission rates dictate the background level of risk that any student or teacher will pass on the virus to others. If local rates are low, school heads can afford to relax social distancing and mask-wearing policies and allow larger bubbles. We will need to adjust our responses as local rates rise and fall. Without widespread surveillance in place, school outbreaks driven by asymptomatic transmission can easily mushroom.

Source: The Guardian September 07, 2020 15:00 UTC