\u0022The claim was that (mass testing) would stop the pandemic in its tracks ... and it hasn\u0027t\u0022
But two years into the pandemic, health officials in some countries are questioning the merits of repeated, mass testing when it comes to containing infections, particularly considering the billions it costs.
Yet repeated testing of entire cities remains a central part of the “zero-COVID” plan in China, where leaders have threatened action against critics. Pulling back too drastically, however, could leave the world blind to a still-changing virus, some officials said.Workers in protective suits keep watch on a street during a lockdown in Shanghai, on April 16.WHO guidelines have never recommended mass screening of asymptomatic individuals – as is currently happening in China – because of the costs involved and the lack of data on its effectiveness.
Christine Stabell Benn, professor of global health at University of Southern Denmark, said Denmark’s strategy was expensive and results “undocumented.”
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