COVID-19 is raging globally,with new cases in more than 200 countries and regions,and more than three billion people under quarantine of different forms.Although the number of cases and the general death rate of the current pandemic are lower than those of several major plagues in history,its scope and comprehensive impact are unprecedented.Globalization1 is one major reason for the rapid spread of the virus around the world.It has brought countries all over the world together,through convenient land,sea,and air transportation,coupled with increasingly frequent economic,technological,and cultural exchanges,which is now truly reflected in the phrase as“warm and cold we share together.”
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