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Further, the city lockdown strategy can buy time during which countries can mobilize an effective response in order to better prepare. Our study provided urgently needed and reliable causal evidence that city lockdown can be an effective short-term tool in containing and delaying the spread of a viral epidemic. A 2.25-fold surge was found for the increase in new cases on the fifth day following the lockdown, after which it died down rapidly. However, the suppression effect became less discernible after this initial period of time. The increase in new cases declined by around 50% during this period. A significant reduction of new cases was observed within four days of the lockdown. In our example, the lockdown of Wuhan reduced mobility inflow by approximately 60 % and outflow by about 50 %. By using a weighted average of available control cities to reproduce the counterfactual outcome trajectory that the treated city would have experienced in the absence of the lockdown, the synthetic control approach overcomes the sample selection bias and policy endogeneity problems that can arise from previous empirical methods in selecting control units.

This study aims to assess the causal impact of the Wuhan lockdown on population movement and the increase of newly confirmed COVID-19 cases.īased on the daily panel data from 279 Chinese cities, our research is the first to apply the synthetic control approach to empirically analyze the causal relationship between the Wuhan lockdown of its population mobility and the progression of newly confirmed COVID-19 cases. This lockdown represented the largest quarantine in the history of public health and provides us with an opportunity to critically examine the relationship between a city lockdown on human mobility and controlling the spread of a viral epidemic, in this case COVID-19.

on JanuWuhan, China imposed a 76-day travel lockdown on its 11 million residents in order to stop the spread of COVID-19. Faculty, staff, and students come to campus only for classes, “essential work”, or for confirmed appointments for study spaces or other approved reasons.At 10 a.m. University officials also added that, during COVID-19, about 90% of NEIU classes are taking place remotely. “While we are disheartened this incident occurred, we are extremely thankful that all members of our University community are safe and no one was injured.” “Northeastern will continue to ensure our campus is secure,” Gibson said in the email. They have no known affiliation to Northeastern Illinois University.”Ī university spokesperson said they are continuing to investigate and that they have stationed additional officers near The Nest, a nearby student dorm, and the childcare facility. “A weapon was recovered in one of the parking lots however, the suspects were not apprehended. “Please know that no shots were fired by CPD or NEIUPD on our campus,” she said.

Gibson sent a campus-wide email to faculty, staff, and students after the lockdown. Bown said that police did recover a weapon and drugs in the parking lot. after authorities determined that the suspects had left the campus area. The lockdown was lifted at about 11:45 a.m. The campus was placed on lockdown, as the shooting took place near a childcare center and an on-campus dorm.