摘要：Wepresent an analysis of COVID-19 lockdowns for 5,6 countries based on daily mobility levelsand estimated virus transmission rates. What will happen to transmission rates when countries begin to ease restrictions and mobility levels start to increase? our analysis, basedon data up to May 11th, 2020, show how, even when mobility levels increase, most countries(87%) continue to reduce the effective reproduction number(R) of the virus.Moreover, whenrestrictions were eased only after Rt was below 1, then countries always managed to maintainR≤1even as mobility levels rose, at least for the period covered by the data.In contrast, whenrestrictions were eased before R fell below 1, then only 55% of countries managed to subsequently reduce Rt to below 1.By easing restrictions cautiously and carefully, it waspossible to avoid a rebound in transmission rates while allowing mobility levels to increase.
