WHO和中国举行联合新闻发布会

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1 hr 18 min ago

"No substantial circulation of Covid in Wuhan before the late 2019 outbreak," Chinese health official says​

From CNN's Sandi Sidhu
A WHO-China Joint Study Press Conference is held at the end of a WHO mission to investigate the origins of the coronavirus pandemic in Wuhan, China, on Tuesday, February 9.
A WHO-China Joint Study Press Conference is held at the end of a WHO mission to investigate the origins of the coronavirus pandemic in Wuhan, China, on Tuesday, February 9. Ng Han Guan/AP

WHO's international team of experts investigating the origins of Covid-19 have concluded their four-week mission to Wuhan, the original epicenter of the coronavirus outbreak.

They presented a summary of their findings during a joint press conference with Chinese authorities at a hotel in Wuhan on Tuesday, prior to their departure from China.
Liang Wannian, Head of the Expert Panel of COVID-19 Response of China National Health Commission (NHC) said at the "WHO-China Joint Study" press conference that "the findings indicated that there was no substantial unrecognized circulation of #SARScov2 in Wuhan during the latter part of 2019."

He said that the "first part," or the "Chinese part" of the global tracing research has been completed.

The international team visited the Huanan seafood market that was linked to early case clusters and the hospital where the first cases were detected.

They visited the Wuhan Institute of Virology and probed data provided by Chinese authorities from Hubei Provincial Center for Disease Control.

The field visits concluded on February 6, and the team have been poring over data with Chinese counterparts.
WHO investigators spent fourteen days in quarantine collaborating with Chinese scientists, reviewing data on Zoom calls and conducted field visits in Wuhan to understand more about the origins of the Covid-19 virus.

The WHO team members are expected to depart from China on Tuesday and Wednesday.
 
48 min ago

China Health official says that experts failed to identify SARS-CoV-2 in wildlife in China​

From CNN's Sandi Sidhu
Liang Wannian speaks during a joint press conference with the World Health Organization team in Wuhan, China, on Tuesday, February 9.
Liang Wannian speaks during a joint press conference with the World Health Organization team in Wuhan, China, on Tuesday, February 9. Ng Han Guan/AP

Viruses genetically related to SARS-CoV-2 have not been identified in different animals including horseshoe bats and pangolins, and all animals tested in Wuhan tested negative for the virus, China's leading health official said Tuesday.

At a joint World Health Organization-China press conference in Wuhan on Tuesday, Liang Wannian, Head of Expert Panel of COVID-19 Response of China National Health Commission (NHC) said that the studies and research have "failed to identify evidence of SARS-CoV-2 related viruses in samples of wildlife in Wuhan and different places in China."

"All animals were negative," Liang said of the animals tested in Wuhan.

Liang said that sampling from the Huanan seafood market indicated that there was "widespread contamination of surfaces" with SARS-CoV-2 at the point that it closed.

He said that the finding was "compatible with the introduction of the virus from infected people or related cold chain products, animals and animal products" and that research into related cold chain products needed further research.

"According to this research, all of the samples related to animal products or animals were all negative. For the cold chain products and relevant testing, the research is at the ongoing stage," Liang said.

He explained that the virus can "persist in conditions found in frozen food, packaging and cold chain products," and that "recent outbreaks in China have been linked to the cold chain."

Correction: An earlier version of this post misstated Liang’s findings on the presence of SARS-CoV-2 in animals.
 
说明中国政府前期工作做得好?
 
1 hr 18 min ago

WHO expert says first Covid-19 cases from Huanan seafood market were likely infected around early December or late November 2019​

From CNN's Chandler Thornton in Hong Kong

World Health Organization expert Peter Ben Embarek said the first Covid-19 cases from the Huanan seafood market outbreak were probably infected in early December 2019 or late November 2019.

"In terms of time and place, what we know is that some of the first cases that could be linked to the market were detected or had their onset of symptoms in the first two weeks of December -- that indicating that they were probably infected around the start of December or late November," Embarek said in a press conference following the WHO team's investigation in Wuhan on Tuesday.
"But we can't go into more details with the information we have looked at," Embarek added.

Embarek also said his team found evidence of wider circulation of Covid-19 outside of the Huanan seafood market outbreak in December 2019.

"It was not just only the cluster outbreak in Huanan market, but the virus was also circulated outside the market," he said.

Embarek added that the team's picture of the virus' origins prior to the investigation had not changed dramatically, but that they had gleaned more information.

"Did we change dramatically the picture we had beforehand? I don't think so. Did we add details? Absolutely," Embarek said.
 
1 hr 23 min ago

WHO says an "intermediary host species" is most likely how Covid-19 was introduced to humans​

From CNN's Chandler Thornton in Hong Kong
Peter Ben Embarek of the World Health Organization holds up a chart showing possible pathways of transmission of the coronavirus to humans, during a press conference in Wuhan, China, on February 9.
Peter Ben Embarek of the World Health Organization holds up a chart showing possible pathways of transmission of the coronavirus to humans, during a press conference in Wuhan, China, on February 9. Ng Han Guan/AP

World Health Organization expert Peter Ben Embarek said that the team investigating the origins of the coronavirus in Wuhan have identified two scenarios that most likely caused the transmission of Covid-19 to the human population.

"Our initial findings suggest that the introduction through an intermediary host species is the most likely pathway and one way that will require more studies and more specific targeted research," Embarek said during a press conference on Tuesday.

He added that the possibility of transmission through the trade of frozen products was also likely.

Embarek also noted two other hypotheses the team had probed while investigating the origin of the virus.

One hypothesis was a "direct zoonotic spillover," meaning, direct transmission from an animal reservoir to a human.

"The hypothesis of a direct spillover from an original animal source into the human population is also a possible pathway and is also generating recommendation for future studies," he said.

The fourth hypothesis was the possibility of a laboratory-related incident, but that this was the least likely of the four to be the cause of the virus' introduction to humans.

"Findings suggest that the laboratory hypothesis is extremely unlikely to explain the introduction of the virus to the human population," Embarek said.
 
27 min ago

Chinese health official says Huanan market might not be the first place of the Covid-19 outbreak​

From CNN's Chandler Thornton in Hong Kong

Chinese health official Liang Wannian, left, is seen during a press conference with World Health Organization representatives Peter Ben Embarek, center, and Marion Koopmans, in Wuhan, China, on February 9.
Chinese health official Liang Wannian, left, is seen during a press conference with World Health Organization representatives Peter Ben Embarek, center, and Marion Koopmans, in Wuhan, China, on February 9. Ng Han Guan/AP

A Chinese health official working with the team of World Health Organization experts in Wuhan said that the Huanan seafood market may not be the first place of the Covid-19 outbreak.

"Huanan market may not be the first place that had the outbreak," Liang Wannian, head of Expert Panel of COVID-19 Response of China's National Health Commission (NHC) said in a joint press conference with WHO experts in Wuhan on Tuesday.

Liang noted that the onset date of the earliest Covid-19 case had been on December 8, 2019 and the earliest case associated with Huanan market was on December 12, 2019.

He said that "the case with the onset date of December 8 case had no relation with Huanan seafood market," but did not indicate a location that the December 8 case was connected to.

Earlier, World Health Organization expert Peter Ben Embarek said that the team investigating the origins of the coronavirus in Wuhan had identified two scenarios that most likely caused the transmission of Covid-19 to humans.

"Our initial findings suggest that the introduction through an intermediary host species is the most likely pathway and one way that will require more studies and more specific targeted research," Embarek said during a press conference on Tuesday.

He added that the possibility of transmission through the trade of frozen products was also likely.
 
13 hr 34 min ago

WHO expert from Wuhan mission warns against relying "too much on US intel" around Covid-19​

From CNN's Chandler Thornton in Hong Kong

Peter Daszak (r) and other members of the World Health Organization team investigating the origins of the Covid-19 coronavirus, arrive at the Wuhan Institute of Virology on February 3.
Peter Daszak (r) and other members of the World Health Organization team investigating the origins of the Covid-19 coronavirus, arrive at the Wuhan Institute of Virology on February 3. Hector Retamal/AFP/Getty Images

A World Health Organization expert who was on the team of scientists investigating the origins of Covid-19 in the central Chinese city of Wuhan said people shouldn't "rely too much on US intel" around the coronavirus.



In a tweet Wednesday responding to an article about the United States wanting to "independently" verify WHO findings out of Wuhan, expert Peter Daszak said "don't forget, it's 'TRUST' then 'VERIFY'!"
Daszak added that US President Joe Biden "has to look tough on China" but urged him against relying on the US intelligence services, which he said were "increasingly disengaged under Trump (and) frankly wrong on many aspects."
"Happy to help the (White House with) their quest to verify," Daszak said.
No fast answers: On Tuesday, after the WHO team wrapped up their investigations in Wuhan, Daszak told CNN that while scientists will eventually "get a really clear picture" of how Covid-19 originated, it may take weeks, months or even a "couple of years."
He added that a "patient zero" still has yet to be identified and may never be, as many cases were asymptomatic.
 
13 hr 56 min ago

Analysis: China seizes on lack of WHO breakthrough in Wuhan to claim coronavirus vindication​

Analysis from CNN's James Griffiths

World Health Organization experts attend a news conference with Chinese health officials in Wuhan on February 9, 2021.
World Health Organization experts attend a news conference with Chinese health officials in Wuhan on February 9, 2021. Hector Retamal/AFP/Getty Images
Reading Chinese state media coverage, you could be forgiven for thinking the World Health Organization's investigation into the origins of Covid-19 had ruled out Wuhan as the potential source of the pandemic.

Ahead of their four-week visit to the central Chinese city, which wrapped up this week, the WHO team had warned their research might not turn up anything particularly groundbreaking. They cited the length of time since infections first started spreading in Wuhan, and the degree to which the city has been disinfected and sterilized since, as residents endured a lengthy lockdown and subsequently returned to relative normality.

And so therefore -- while somewhat disappointing -- it was no shock that the team did not reveal any major surprises in presenting their findings Tuesday. The most definitive the investigators could be was in dismissing suggestions that the virus escaped from a Chinese lab dedicated to studying such infections. On most other issues, the WHO experts prevaricated or admitted there was no clear evidence.

"Did we change dramatically the picture we had beforehand? I don't think so," said Peter Ben Embarek, one of the WHO investigators, at a news conference. "Did we add details? Absolutely."

State media's take: Chinese state media used comments from the fiercely apolitical scientists to vindicate various propaganda priorities, chief of which is the suggestion that the virus could have come from outside China.

China Daily, a state-run newspaper targeting international readers, ran the headline "WHO team: Probe of virus' origin should not be 'geographically bound'," while Global Times, a nationalist tabloid, took it a step further, saying WHO was ready to "scrutinize Southeast Asia" as a potential origin of the virus.

Read the full analysis:
Analysis: China seizes on lack of WHO breakthrough in Wuhan to claim coronavirus vindication
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Analysis: China seizes on lack of WHO breakthrough in Wuhan to claim coronavirus vindication

 

WHO公布武汉调查初步发现,北京赢得公关胜利​

赫海威2021年2月10日
来到中国研究新冠疫情起源的世界卫生组织专家组成员被带去参观了关于该国成功抗击疫情的博物馆展览。
来到中国研究新冠疫情起源的世界卫生组织专家组成员被带去参观了关于该国成功抗击疫情的博物馆展览。 NG HAN GUAN/ASSOCIATED PRESS

数月来,中国一直拒绝让世界卫生组织(World Health Organization)专家进入国内,追溯全球新冠疫情的源头,担心此类调查可能会引发人们对政府早期应对疫情失误的关注。

在一阵全球反对声浪过后,中国政府终于松口,允许一个由14名科学家组成的团队在过去12天造访武汉市的实验室、疾病控制中心和活鲜市场。

但在周二,世卫组织的专家们并没有对中国官员提出批评,而是称赞了他们,并认可其叙事的关键部分,包括一些存在争议的说法。

世卫组织专家组对中国官员宣扬的一种理论持开放态度,称病毒可能是通过冷链食品运输传染给人类的,在中国以外的科学家当中,这个观点几乎没有人支持。有报道称在2019年底武汉暴发疫情前的几个月,病毒可能已经在中国境外出现,专家们承诺将对此进行调查,这是中国官员长期以来的要求。

“我们确实应该去寻找早期传播的证据,无论它在哪里,”世卫组织专家组的荷兰病毒学家玛丽昂·库普曼斯(Marion Koopmans)在武汉举行的长达三小时的新闻发布会上说。在会上,专家们与中国科学家共同公布了他们的初步发现。

一些科学家担心,将注意力转移到其他国家可能会导致调查失去重点。他们认为,确定中国疫情暴发初期发生了什么,对避免另一场疫情至关重要。

专家组还淡化了病毒可能是由中国运营的实验室意外泄露的想法,即使是持怀疑态度的一些科学家也认为这一观点值得探究。这一理论与一些美国共和党人推动的中国实验室制造了该病毒作为生物武器的说法不同,后者受到了广泛质疑。

世卫组织在设计上受制于成员国,在与以抵制外部监督著称的中国政府打交道时,它长期以来采取外交手法。调查仍处于早期阶段,可能会持续数年,世卫组织官员承诺对中国和其他国家的数据和研究进行严格而透明的审查。

尽管如此,周二公布的调查结果仍给北京带来了一次公关胜利,它目前正因为最初掩盖疫情的行为而受到美国和其他国家官员的批评。

“这是中国在其官方叙事中得到的最权威的支持,”美国外交关系委员会(Council on Foreign Relations)全球卫生问题高级研究员黄严忠说。

黄严忠表示,世卫组织应继续向中国施压,要其提供数据和调查途径。

“一次访问是来不及做全面调查的,”他说。“他们所有工作都是在中国政府允许的范围内进行的。”

专家组没有报告重大的突破性发现,但表示找到了重要线索。专家们称,病毒在华南海鲜批发市场出现的几周前就已经在武汉传播,该市场报告了最早出现的一些聚集性病例。病毒很可能出现在蝙蝠中,然后通过另一种小型哺乳动物传给人类,不过专家们表示,他们还无法确定是什么物种。

“所有对病毒以及试图确认其来源而展开的工作都指向一个自然宿主,”世卫组织食品安全科学家彼得·K·本·安巴雷克(Peter K. Ben Embarek)在新闻发布会上说,他是专家组负责人。

本·安巴雷克博士表示,病毒“极不可能”来自武汉的一个研究蝙蝠冠状病毒的实验室。

该小组上周会见了武汉病毒研究所的负责人,该所拥有最先进的实验室。本·安巴雷克援引那里的安全规程说,“任何东西都不太可能从这样的地方逃出来。”

周二,世卫组织的专家在发言时试图把重点放在该任务的科学方面。但这项调查常常蒙上政治的阴影。

美国和其他西方国家的一些官员对世卫组织调查的独立性提出了质疑,认为中国正在寻求控制结果。政府一再推迟世卫组织专家的访问,并试图限制他们的任务范围。中国当局牢牢控制着国内与该病毒相关的研究,令人担心他们可能会试图阻止令人尴尬的信息发布。

中国政府试图将注意力转移到其他地方,继续暗示病毒可能源自海外。中国驻美国大使崔天凯最近建议,美国也应该允许世界卫生组织派遣人员到那里进行调查。

在周二的新闻发布会上,中国官员大力宣传病毒来自该国之外的观点,声称寻找病毒来源的工作应将重点放在中国以外的地方。

调查将“不限于任何地点”,协助世卫组织调查的中国科学家团队负责人梁万年说。他表示,中国研究人员没有发现证据表明该病毒于2019年12月之前在中国大规模传播。

在华盛顿,国务院发言人内德·普莱斯(Ned Price)在新闻发布会上表示,美国会等着看世界卫生组织的报告,然后才会对其调查结果以及北京对调查人员的透明度做出结论。

世卫组织成员表示,访问武汉期间,他们试图避开政治,并承诺会提出尖锐的问题。在武汉,他们在开始实地工作之前接受了两周的隔离检疫,接受了新闻媒体的采访,并被拍到接受新冠病毒检测。他们通过社交媒体为此次访问带来更多透明度,发布他们与中国科学家对话的照片和评论。

专家们一再赞扬中国同行,称政府真诚合作,允许他们进入实验室和市场等重要地点。在周二的新闻发布会上,专家们态度友好,没有质疑中国东道主的发言。

在接下来的几个月里,该小组将面临压力,不仅要解决棘手的科学问题,还要证明他们正在进行公正而艰难的调查。

乔治城大学(Georgetown University)传染病专家丹尼尔·R·路西(Daniel R. Lucey)说,“中国现在的战略叙事是,‘这是调查的中国部分,我们已经完成了,让我们翻篇吧。’”

路西表示,专家们需要取得突破,才能证明其可信度。

他还说,“如果团队没有拿出一些实质性的东西,还有一种风险是,人们会说这一切都只是一场秀。”

-----------------------------​

Albee Zhang对本文有研究贡献。

赫海威(Javier C. Hernández)是《纽约时报》负责报道中国的记者。他报道了习近平领导下专制国家的崛起、#MeToo运动等社会理念的发展以及农民工和污染受害者等中国最弱势公民的困境。欢迎在Twitter上关注他 @HernandezJavier

翻译:纽约时报中文网

点击查看本文英文版。

 

新冠疫情:世卫专家称早已排除实验室泄漏,BBC记者质问报告可信性
8 小时前

世卫的溯源团队中,有一部份的科学家在抵达武汉调查前,就形容新冠病毒从实验室泄漏的说法是个阴谋论,BBC记者质问报告可信性。

世卫科学家回应,“这是一个独立得出的结果,实验室泄漏的可能性非常低。”

 
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