上海海关严把国境口岸卫生检疫关 - 2020年03月05日

All people who have lived or traveled in coronavirus affected countries such as South Korea, Italy, Iran and Japan in the 14 days prior to their arrival in Shanghai must undergo 14-day quarantine at home or in designated places for medical observation, city officials said at a press conference on Wednesday.
The decision was made based on the World Health Organization’s assessment of the global epidemic situation and related expert analysis, as well as measures taken by other provinces and cities in China, said Yin Xin, director of the news release department of the Shanghai Information Office.
Yesterday, local officials announced quarantine measures from all travelers arriving from "key countries" affected by coronavirus, without mentioning which countries they were referring to.