{"id":2633,"date":"2020-05-06T13:49:56","date_gmt":"2020-05-06T13:49:56","guid":{"rendered":"http:\/\/bfi.uchicago.cn\/insights\/measuring-the-impact-of-mobility-restrictions-on-virus-transmission\/"},"modified":"2021-01-07T16:28:48","modified_gmt":"2021-01-07T16:28:48","slug":"measuring-the-impact-of-mobility-restrictions-on-virus-transmission","status":"publish","type":"insights","link":"http:\/\/bfi.uchicago.cn\/zh-hans\/insights\/measuring-the-impact-of-mobility-restrictions-on-virus-transmission\/","title":{"rendered":"Measuring the Impact of Mobility Restrictions on Virus Transmission"},"content":{"rendered":"<blockquote><p><i>There would have been 65 percent more cases of COVID-19 in the 347 Chinese cities outside Hubei province had Wuhan not been locked down on January 23.<\/i><\/p><\/blockquote>\n<p>Human mobility contributes to the transmission of infectious diseases that threaten global health. A principal response of many countries to the COVID-19 pandemic has been to impose restrictions on people&#8217;s movements. However, such policies are controversial because they have a negative economic impact, and they also limit personal freedoms. To strike the right balance, it is essential to understand the effect of lockdowns on the spread of pandemics.<\/p>\n<p>In Human Mobility Restrictions and the Spread of the Novel Coronavirus (2019-nCoV) in China, Hanming Fang, Long Wang, and Yang Yang quantify the effectiveness of human mobility restrictions on efforts to control the spread of the disease and reduce health risks in Hubei province, the area of China in which the virus emerged. The researchers conclude that the Wuhan lockdown reduced inflow into the city by 77 percent, outflow by 56 percent, and within-Wuhan movement by 54 percent. They find that the lockdown significantly contributed to reduction in the total cases of infection outside of Wuhan, even with the social distancing measures later imposed by other cities.<\/p>\n<p>The study estimates that there would have been 65 percent more COVID-19 cases in the 347 Chinese cities outside Hubei province, and 53 percent more in 16 Hubei province cities other than Wuhan, had Wuhan not been locked down on January 23. Imposing enhanced social distancing policies in 63 cities outside Hubei province effectively reduced the impact of population inflows from the epicenter cities in Hubei province on the spread of the virus in destination cities elsewhere.<\/p>\n<p><a class=\"button clear\" href=\"https:\/\/www.nber.org\/digest\/may20\/w26906.shtml\">View NBER Digest Article<\/a><\/p>\n<p><a class=\"button clear\" href=\"https:\/\/www.nber.org\/papers\/w26906\">View Paper<\/a><\/p>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1657\" src=\"http:\/\/bfi.uchicago.cn\/wp-content\/uploads\/2020\/05\/w26906.jpg\" alt=\"\" width=\"840\" height=\"600\" srcset=\"https:\/\/bfi.uchicago.cn\/wp-content\/uploads\/2020\/05\/w26906.jpg 840w, https:\/\/bfi.uchicago.cn\/wp-content\/uploads\/2020\/05\/w26906-300x214.jpg 300w, https:\/\/bfi.uchicago.cn\/wp-content\/uploads\/2020\/05\/w26906-768x549.jpg 768w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/>\n","protected":false},"featured_media":1657,"template":"","insight_types":[495],"class_list":["post-2633","insights","type-insights","status-publish","has-post-thumbnail","hentry","insight_types-fact-zh-hans"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - 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