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Coast-to-Coast Spread of SARS-CoV-2 during the Early Epidemic in the United States.

美国早期流行期间SARS-CoV-2 的海岸间传播。

  • 影响因子:24.38
  • DOI:10.1016/j.cell.2020.04.021
  • 作者列表:"Fauver JR","Petrone ME","Hodcroft EB","Shioda K","Ehrlich HY","Watts AG","Vogels CBF","Brito AF","Alpert T","Muyombwe A","Razeq J","Downing R","Cheemarla NR","Wyllie AL","Kalinich CC","Ott IM","Quick J","Loman NJ","Neugebauer KM","Greninger AL","Jerome KR","Roychoudhury P","Xie H","Shrestha L","Huang ML","Pitzer VE","Iwasaki A","Omer SB","Khan K","Bogoch II","Martinello RA","Foxman EF","Landry ML","Neher RA","Ko AI","Grubaugh ND
  • 发表时间:2020-05-28
Abstract

:The novel coronavirus SARS-CoV-2 was first detected in the Pacific Northwest region of the United States in January 2020, with subsequent COVID-19 outbreaks detected in all 50 states by early March. To uncover the sources of SARS-CoV-2 introductions and patterns of spread within the United States, we sequenced nine viral genomes from early reported COVID-19 patients in Connecticut. Our phylogenetic analysis places the majority of these genomes with viruses sequenced from Washington state. By coupling our genomic data with domestic and international travel patterns, we show that early SARS-CoV-2 transmission in Connecticut was likely driven by domestic introductions. Moreover, the risk of domestic importation to Connecticut exceeded that of international importation by mid-March regardless of our estimated effects of federal travel restrictions. This study provides evidence of widespread sustained transmission of SARS-CoV-2 within the United States and highlights the critical need for local surveillance.

摘要

: 2020 年 1 月在美国太平洋西北部地区首次发现了新型冠状病毒的SARS-CoV-2,到 3 月初,随后在所有 50 个州都发现了新型冠状病毒肺炎疫情。为了揭示SARS-CoV-2 的来源和在美国的传播模式,我们对康涅狄格州早期报道的新型冠状病毒肺炎例患者的 9 个病毒基因组进行了测序。我们的系统发育分析将这些基因组中的大部分与来自华盛顿州的测序病毒放置在一起。通过将我们的基因组数据与国内和国际旅行模式相结合,我们发现康涅狄格州的早期SARS-CoV-2 传播可能是由国内引进驱动的。此外,无论我们估计的联邦旅行限制的影响如何,到 3 月中旬,国内进口到康涅狄格州的风险都超过了国际进口。这项研究提供了SARS-CoV-2 在美国广泛持续传播的证据,并强调了当地监测的迫切需要。

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影响因子:1.60
发表时间:2020-02-17
DOI:10.3346/jkms.2020.35.e79
作者列表:["Lim J","Jeon S","Shin HY","Kim MJ","Seong YM","Lee WJ","Choe KW","Kang YM","Lee B","Park SJ"]

METHODS::Since mid-December of 2019, coronavirus disease 2019 (COVID-19) infection has been spreading from Wuhan, China. The confirmed COVID-19 patients in South Korea are those who came from or visited China. As secondary transmissions have occurred and the speed of transmission is accelerating, there are rising concerns about community infections. The 54-year old male is the third patient diagnosed with COVID-19 infection in Korea. He is a worker for a clothing business and had mild respiratory symptoms and intermittent fever in the beginning of hospitalization, and pneumonia symptoms on chest computerized tomography scan on day 6 of admission. This patient caused one case of secondary transmission and three cases of tertiary transmission. Hereby, we report the clinical findings of the index patient who was the first to cause tertiary transmission outside China. Interestingly, after lopinavir/ritonavir (Kaletra, AbbVie) was administered, β-coronavirus viral loads significantly decreased and no or little coronavirus titers were observed.

影响因子:4.36
发表时间:2020-02-17
DOI:10.1080/22221751.2020.1729071
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METHODS::In December 2019, a novel coronavirus (2019-nCoV) caused an outbreak in Wuhan, China, and soon spread to other parts of the world. It was believed that 2019-nCoV was transmitted through respiratory tract and then induced pneumonia, thus molecular diagnosis based on oral swabs was used for confirmation of this disease. Likewise, patient will be released upon two times of negative detection from oral swabs. However, many coronaviruses can also be transmitted through oral-fecal route by infecting intestines. Whether 2019-nCoV infected patients also carry virus in other organs like intestine need to be tested. We conducted investigation on patients in a local hospital who were infected with this virus. We found the presence of 2019-nCoV in anal swabs and blood as well, and more anal swab positives than oral swab positives in a later stage of infection, suggesting shedding and thereby transmitted through oral-fecal route. We also showed serology test can improve detection positive rate thus should be used in future epidemiology. Our report provides a cautionary warning that 2019-nCoV may be shed through multiple routes.

翻译标题与摘要 下载文献
影响因子:2.48
发表时间:2020-04-01
来源期刊:Infection
DOI:10.1007/s15010-020-01401-y
作者列表:["Cheng ZJ","Shan J"]

METHODS::There is a current worldwide outbreak of a new type of coronavirus (2019-nCoV), which originated from Wuhan in China and has now spread to 17 other countries. Governments are under increased pressure to stop the outbreak spiraling into a global health emergency. At this stage, preparedness, transparency, and sharing of information are crucial to risk assessments and beginning outbreak control activities. This information should include reports from outbreak sites and from laboratories supporting the investigation. This paper aggregates and consolidates the virology, epidemiology, clinical management strategies from both English and Chinese literature, official news channels, and other official government documents. In addition, by fitting the number of infections with a single-term exponential model, we report that the infection is spreading at an exponential rate, with a doubling period of 1.8 days.

呼吸道感染方向

呼吸道感染分为上呼吸道感染与下呼吸道感染。上呼吸道感染是指自鼻腔至喉部之间的急性炎症的总称,是最常见的感染性疾病。下呼吸道感染是最常见的感染性疾患,治疗时必须明确引起感染的病原体以选择有效的抗生素。

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