《MedRixv,2月18日,Estimating the distribution of the incubation period of 2019 novel coronavirus (COVID-19) infection between travelers to Hubei, China and non-travelers》

  • 来源专题:COVID-19科研动态监测
  • 编译者: zhangmin
  • 发布时间:2020-02-20
  • Estimating the distribution of the incubation period of 2019 novel coronavirus (COVID-19) infection between travelers to Hubei, China and non-travelers

    Char Leung

    doi: https://doi.org/10.1101/2020.02.13.20022822

    Abstract

    Objectives: Amid the continuing spread of the novel coronavirus (COVID-19), the incubation period of COVID-19 should be regularly re-assessed as more information is available upon the increase in reported cases. The present work estimated the distribution of incubation periods of patients infected in and outside Hubei province of China. Methods: Clinical data were collected from the individual cases reported by the media as they were not fully available on the official pages of the Chinese health authorities. MLE was used to estimate the distributions of the incubation period. Results: It was found that the incubation period of patients with no travel history to Hubei was longer and more volatile. Conclusion: It is recommended that the duration of quarantine should be extended to at least 3 weeks.

    *注,本文为预印本论文手稿,是未经同行评审的初步报告,其观点仅供科研同行交流,并不是结论性内容,请使用者谨慎使用.

  • 原文来源:https://www.medrxiv.org/content/10.1101/2020.02.13.20022822v1
相关报告
  • 《 MedRxiv,2月18日,Estimating the distribution of the incubation period of 2019 novel coronavirus (COVID-19) infection between travelers to Hubei, China and non-travelers》

    • 来源专题:COVID-19科研动态监测
    • 编译者:xuwenwhlib
    • 发布时间:2020-02-19
    • Estimating the distribution of the incubation period of 2019 novel coronavirus (COVID-19) infection between travelers to Hubei, China and non-travelers Char Leung doi: https://doi.org/10.1101/2020.02.13.20022822 Abstract Objectives: Amid the continuing spread of the novel coronavirus (COVID-19), the incubation period of COVID-19 should be regularly re-assessed as more information is available upon the increase in reported cases. The present work estimated the distribution of incubation periods of patients infected in and outside Hubei province of China. Methods: Clinical data were collected from the individual cases reported by the media as they were not fully available on the official pages of the Chinese health authorities. MLE was used to estimate the distributions of the incubation period. Results: It was found that the incubation period of patients with no travel history to Hubei was longer and more volatile. Conclusion: It is recommended that the duration of quarantine should be extended to at least 3 weeks. *注,本文为预印本论文手稿,是未经同行评审的初步报告,其观点仅供科研同行交流,并不是结论性内容,请使用者谨慎使用.
  • 《NEJM,2月18日,Evidence of SARS-CoV-2 Infection in Returning Travelers from Wuhan, China》

    • 来源专题:COVID-19科研动态监测
    • 编译者:xuwenwhlib
    • 发布时间:2020-02-19
    • Evidence of SARS-CoV-2 Infection in Returning Travelers from Wuhan, China February 18, 2020 DOI: 10.1056/NEJMc2001899 As the number of cases of infection with the novel coronavirus (SARS-CoV-2) has continued to increase, many countries have established restrictions regarding travelers who have recently visited China.1 With lockdown measures imposed in Hubei Province, China,2 and a public health emergency of international concern declared by the World Health Organization,3 foreign nationals have sought to return to their home countries from China, and public health authorities are racing to contain the spread of Covid-19 (the disease caused by SARS-CoV-2 infection) around the world. This process is complicated by epidemiologic uncertainty regarding possible transmission of the virus by asymptomatically or subclinically symptomatic infected persons. It is unclear whether persons who show no signs or symptoms of respiratory infection shed SARS-CoV-2. In this context, a group of predominantly German nationals who had stayed in Hubei Province was evacuated to Frankfurt, Germany, on February 1, 2020. They were to be transferred to Germersheim, Germany, and quarantined for 14 days, since this period is thought to be the upper limit of the incubation period of SARS-CoV-2. Screening for symptoms and clinical signs of infection was performed before their departure from China. A total of 126 travelers were allowed to board an aircraft operated by the German air force (Figure 1).