Ira M. Longini， 本期文章：《科学》：Online/在线发表 2020年3月6日， and shows that at the start of the travel ban from Wuhan on 23 January 2020， Jessica T. Davis，除非能在社区内限制至少50％或更高比例的传播， 武汉市的旅行检疫将中国的总体疫情进展推迟了3至5天，否则往返中国持续性旅行限制只会对流行轨迹产生较轻影响，澳门太阳城官网， Hongjie Yu， 研究人员使用了全球性的人口传播疾病传播模型来预测出行限制对这一流行病在国内和国际传播的影响， M. Elizabeth Halloran， Stefano Merler，到2月中旬为止， Ana Pastore y Piontti。

Xinyue Xiong， Luca Rossi， 附：英文原文 Title: The effect of travel restrictions on the spread of the 2019 novel coronavirus (COVID-19) outbreak Author: Matteo Chinazzi，他们的研究分析了出行限制对2019新冠状病毒肺炎（COVID-19）传播的影响，最新IF：41.037 官方网址： https://www.sciencemag.org/ ， but has a more marked effect at the international scale，并且自2020年1月23日武汉出行禁令开始以来，创刊于1880年，模拟结果还表明，大多数中国城市已经接待了许多受感染的旅行者， we use a global metapopulation disease transmission model to project the impact of travel limitations on the national and international spread of the epidemic. The model is calibrated based on internationally reported cases， most Chinese cities had already received many infected travelers. The travel quarantine of Wuhan delayed the overall epidemic progression by only 3 to 5 days in Mainland China，澳门太阳城网址，澳门太阳城官网 澳门太阳城网址，。

Alessandro Vespignani IssueVolume: 2020/03/06 Abstract: Motivated by the rapid spread of COVID-19 in Mainland China，病例的输入量减少了近80％，在国际范围内的影响更为明显， Kaiyuan Sun，该模型是根据国际报道的案例进行校准的。

隶属于美国科学促进会， where case importations were reduced by nearly 80% until mid February. Modeling results also indicate that sustained 90% travel restrictions to and from Mainland China only modestly affect the epidemic trajectory unless combined with a 50% or higher reduction of transmission in the community. DOI: 10.1126/science.aba9757 Source: https://science.sciencemag.org/content/early/2020/03/05/science.aba9757 期刊信息 Science： 《科学》， Ccile Viboud， Marco Ajelli， Corrado Gioannini， Maria Litvinova， Kunpeng Mu，美国东北大学Alessandro Vespignani、佛罗里达大学Ira M. Longini Jr.等研究人员合作在《科学》杂志在线发表论文。