Nurses perform timed breathing exercises on a COVID-19 patient on a ventilator in the COVID-19 intensive care unit at the la Timone hospital in Marseille, southern France, Friday, Dec. 31, 2021. The official global death toll from COVID-19 is on the verge of eclipsing 6 million — underscoring that the pandemic, now in its third year, is far from over. (AP Photo/Daniel Cole, File)
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