摘要
Along with the announcement of COVID-19 as a global pandemic by the World Health Organization(WHO)on March 12,2020,COVID-19 appeared to be spreading rapidly around the world.By 10:00 CET on March 25,2020,a total of 331,619 confirmed cases and 15,146 deaths were reported from 195 foreign countries and regions on 6 continents plus the Diamond Princess international cruise ship,and among them,124 countries and regions had local transmission.Cumulatively,the WHO website reported 15,918 confirmed COVID-19 cases from 16 countries and regions in the Western Pacific excluding China,220,516 cases from 60 countries and regions in Europe,2,344 cases from 10 countries and regions in South-East Asia,29,631 cases from 21 countries and regions in the Eastern Mediterranean,60,834 cases from 48 countries and regions in the Americas,and 1,664 cases from 39 countries and regions in Africa(1).