Lockdowns brought temporary relief to some but, everywhere, test and trace is key
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The first wave of coronavirus swept through a world unprepared. Authorities struggled to test for the disease, and didn’t know how to slow the spread of Covid-19.
Lockdowns brought the virus under temporary control in some places, including the UK, buying a window for the revival of education and the economy, and time to prepare for future waves that epidemiologists said were almost inevitable.
