登录
 机构网站
  1. 首页
  2. 情报产品
  3. 快讯详情

《LANCET，3月13日，First known person-to-person transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the USA》

  • 来源专题：COVID-19科研动态监测
  • 编译者： xuwenwhlib
  • 发布时间：2020-03-14

  • First known person-to-person transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the USA

    Published:March 13, 2020DOI:https://doi.org/10.1016/S0140-6736(20)30607-3

    Background

    Coronavirus disease 2019 (COVID-19) is a disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), first detected in China in December, 2019. In January, 2020, state, local, and federal public health agencies investigated the first case of COVID-19 in Illinois, USA.

    Methods

    Patients with confirmed COVID-19 were defined as those with a positive SARS-CoV-2 test. Contacts were people with exposure to a patient with COVID-19 on or after the patient's symptom onset date. Contacts underwent active symptom monitoring for 14 days following their last exposure. Contacts who developed fever, cough, or shortness of breath became persons under investigation and were tested for SARS-CoV-2. A convenience sample of 32 asymptomatic health-care personnel contacts were also tested.

  • 原文来源：https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30607-3/fulltext#
23浏览量
原文链接
相关报告

  • 《LANCET，3月23日，SARS-CoV-2: virus dynamics and host response》
    • 来源专题：COVID-19科研动态监测
    • 编译者：zhangmin
    • 发布时间：2020-03-24
    • SARS-CoV-2: virus dynamics and host response Yu Chen Lanjuan Li Published:March 23, 2020DOI:https://doi.org/10.1016/S1473-3099(20)30235-8 Since December, 2019, coronavirus disease 2019 (COVID-19) has affected more than 100?000 patients globally.1 COVID-19 is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and has a case-fatality rate of 2·3%, with higher rates among elderly patients and patients with comorbidities.2 Person-to-person transmission is efficient, with multiple clusters reported. Clinically, patients with COVID-19 present with respiratory symptoms, which is very similar to the presentation of other respiratory virus infections.
    135浏览量
    原文链接

  • 《Lancet，6月1日，Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis》
    • 来源专题：COVID-19科研动态监测
    • 编译者：zhangmin
    • 发布时间：2020-06-02
    • Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis Derek K Chu, MD Prof Elie A Akl, MD Stephanie Duda, MSc Karla Solo, MSc Sally Yaacoub, MPH Prof Holger J Schünemann, MD et al. Show all authors Show footnotes Open AccessPublished:June 01, 2020DOI:https://doi.org/10.1016/S0140-6736(20)31142-9 Summary Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes COVID-19 and is spread person-to-person through close contact. We aimed to investigate the effects of physical distance, face masks, and eye protection on virus transmission in health-care and non-health-care (eg, community) settings. Methods We did a systematic review and meta-analysis to investigate the optimum distance for avoiding person-to-person virus transmission and to assess the use of face masks and eye protection to prevent transmission of viruses. We obtained data for SARS-CoV-2 and the betacoronaviruses that cause severe acute respiratory syndrome, and Middle East respiratory syndrome from 21 standard WHO-specific and COVID-19-specific sources. We searched these data sources from database inception to May 3, 2020, with no restriction by language, for comparative studies and for contextual factors of acceptability, feasibility, resource use, and equity. We screened records, extracted data, and assessed risk of bias in duplicate. We did frequentist and Bayesian meta-analyses and random-effects meta-regressions. We rated the certainty of evidence according to Cochrane methods and the GRADE approach. This study is registered with PROSPERO, CRD42020177047.
    21浏览量
    原文链接