FILE - A man takes part in a demonstration against the country's coronavirus restrictions in Vienna, Austria, Saturday, Nov. 20, 2021. The coronavirus's omicron variant kept a jittery world off-kilter Wednesday Dec. 1, 2021, as reports of infections linked to the mutant strain cropped up in more parts of the globe, and one official said that the wait for more information on its dangers felt like “an eternity.” (AP Photo/Lisa Leutner, File)
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