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THE world is still not using one of its most effective weapons against Covid – properly ventilating public spaces – more than two years into the pandemic, experts warn.
At the moment there is a “fragile, armed peace” with Covid-19, said Antoine Flahault, director of the Institute of Global Health at the University of Geneva.
转 zhuan[载『zai』说明:本文‘wen’转“zhuan”载自《zi》Sunbet。
