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We read with interest the report on 2019-nCov [1] and would like to provide travel rush during Chinese Spring Festival and the 2019-nCoV in China. Chinese Spring Festival Travel rush refers to the massive use of public (and private) transportation around the Spring Festival. It is a huge-scale phenomenon of high pressure transportation that occurs around the Lunar New Year in China. The Travel rush usually begins 15 days before Lunar New Year's Day and lasts for 40 days. A report from the Chinese Ministry of Transportation shows the total number of public transportation trips during this period in 2019 was 2.98 billion, a number equivalent to all Europeans, Oceanians, and Africans collectively travelling once. Therefore, the BBC referred to the Chinese Spring Festival travel rush as “the world's largest population migration every year.” The 2020 Spring Festival travelling started on January 10 and will end on …