加拿大去年6月报道:在2019年3月西班牙地下水样品中发现新冠病毒痕迹

lindamy

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Coronavirus traces found in Spanish sewage sample from March 2019

By Staff Reuters

Posted June 29, 2020 9:00 am

Updated June 29, 2020 11:04 am

Spanish virologists have found traces of the novel coronavirus in a sample of Barcelona waste water collected in March 2019, nine months before the COVID-19 disease was identified in China, the University of Barcelona said on Friday.

The discovery of virus genome presence so early in Spain, if confirmed, would imply the disease may have appeared much earlier than the scientific community thought.

The University of Barcelona team, who had been testing waste water since mid-April this year to identify potential new outbreaks, decided to also run tests on older samples.

They first found the virus was present in Barcelona on Jan. 15, 2020, 41 days before the first case was officially reported there.

Then they ran tests on samples taken between January 2018 and December 2019 and found the presence of the virus genome in one of them, collected on March 12, 2019.’ of new cases

Coronavirus: Pence says ‘it’s a good thing’ younger Americans make up ‘roughly half’ of new cases – Jun 26, 2020

“The levels of SARS-CoV-2 were low but were positive,” research leader Albert Bosch was quoted as saying by the university.

In mid-June, Italian scientists said that they had found traces of coronavirus in sewage samples there taken in mid-December of last year in Milan and Turin.

“This research may help us understand the beginning of virus circulation in Italy,” Giuseppina La Rosa, an expert in environmental wastewater at the Italian National Institute of Health who co-led the research, said in a statement detailing the findings.

Small studies conducted by scientific teams in the Netherlands, France, Australia and elsewhere have found signs that the virus that causes COVID-19 can be detected in sewage, and many countries are beginning to use wastewater sampling to track the spread of the disease.

Sewage from Ottawa and Gatineau is now being regularly sampled for traces of coronavirus.

Scientists Global News has spoken to point to sewage tests as a potential early-warning system which could alert communities to a second wave of the virus, or fresh outbreaks at a more local level, like in schools or long-term care facilities.

Was the virus lurking in Canadian communities long before we had heard of it?

Sewage samples exist that may be able to answer the question. Statistics Canada has been taking monthly samples of sewage from Montreal, Halifax, Toronto, Edmonton and Vancouver since March of 2018, originally to test for illicit drugs, and those samples have been reserved.

La Rosa said the detection of traces of the virus before the end of 2019 was consistent with evidence emerging in other countries that COVID-19 may have been circulating before China reported the first cases of a new disease on Dec. 31.

A study in May by French scientists found that a man was infected with COVID-19 as early as December 27, nearly a month before France confirmed its first cases.

La Rosa said the presence of the virus in the Italian waste samples did not “automatically imply that the main transmission chains that led to the development of the epidemic in our country originated from these very first cases.”

Samples positive for traces of the virus that causes COVID-19 were also found in sewage from Bologna, Milan and Turin in January and February 2020. Samples taken in October and November 2019 tested negative.

The Spanish research has been submitted for a peer review.

Dr Joan Ramon Villalbi of the Spanish Society for Public Health and Sanitary Administration told Reuters it was still early to draw definitive conclusions.

“When it’s just one result, you always want more data, more studies, more samples to confirm it and rule out a laboratory error or a methodological problem,” he said.

 
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lindamy

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Coronavirus: Expert suggests virus may not have originated in China​

Plus, Dawna Friesen explains why one Oxford University epidemiologist is suggesting the novel coronavirus was long dormant before the first confirmed case was discovered.

加拿大2020年7月报道,根据意大利,巴西和西班牙地下水的研究,认为Covid可能在2019年3月,中国武汉爆发之前9个月已经存在。

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冰中取火

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所有和主流民主国家不一样的发现都会被冠以阴谋论而扼杀。:evil:
 

ztbll

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Coronavirus traces found in Spanish sewage sample from March 2019

By Staff Reuters

Posted June 29, 2020 9:00 am

Updated June 29, 2020 11:04 am

Spanish virologists have found traces of the novel coronavirus in a sample of Barcelona waste water collected in March 2019, nine months before the COVID-19 disease was identified in China, the University of Barcelona said on Friday.

The discovery of virus genome presence so early in Spain, if confirmed, would imply the disease may have appeared much earlier than the scientific community thought.

The University of Barcelona team, who had been testing waste water since mid-April this year to identify potential new outbreaks, decided to also run tests on older samples.

They first found the virus was present in Barcelona on Jan. 15, 2020, 41 days before the first case was officially reported there.

Then they ran tests on samples taken between January 2018 and December 2019 and found the presence of the virus genome in one of them, collected on March 12, 2019.’ of new cases

Coronavirus: Pence says ‘it’s a good thing’ younger Americans make up ‘roughly half’ of new cases – Jun 26, 2020

“The levels of SARS-CoV-2 were low but were positive,” research leader Albert Bosch was quoted as saying by the university.

In mid-June, Italian scientists said that they had found traces of coronavirus in sewage samples there taken in mid-December of last year in Milan and Turin.

“This research may help us understand the beginning of virus circulation in Italy,” Giuseppina La Rosa, an expert in environmental wastewater at the Italian National Institute of Health who co-led the research, said in a statement detailing the findings.

Small studies conducted by scientific teams in the Netherlands, France, Australia and elsewhere have found signs that the virus that causes COVID-19 can be detected in sewage, and many countries are beginning to use wastewater sampling to track the spread of the disease.

Sewage from Ottawa and Gatineau is now being regularly sampled for traces of coronavirus.

Scientists Global News has spoken to point to sewage tests as a potential early-warning system which could alert communities to a second wave of the virus, or fresh outbreaks at a more local level, like in schools or long-term care facilities.

Was the virus lurking in Canadian communities long before we had heard of it?

Sewage samples exist that may be able to answer the question. Statistics Canada has been taking monthly samples of sewage from Montreal, Halifax, Toronto, Edmonton and Vancouver since March of 2018, originally to test for illicit drugs, and those samples have been reserved.

La Rosa said the detection of traces of the virus before the end of 2019 was consistent with evidence emerging in other countries that COVID-19 may have been circulating before China reported the first cases of a new disease on Dec. 31.

A study in May by French scientists found that a man was infected with COVID-19 as early as December 27, nearly a month before France confirmed its first cases.

La Rosa said the presence of the virus in the Italian waste samples did not “automatically imply that the main transmission chains that led to the development of the epidemic in our country originated from these very first cases.”

Samples positive for traces of the virus that causes COVID-19 were also found in sewage from Bologna, Milan and Turin in January and February 2020. Samples taken in October and November 2019 tested negative.

The Spanish research has been submitted for a peer review.

Dr Joan Ramon Villalbi of the Spanish Society for Public Health and Sanitary Administration told Reuters it was still early to draw definitive conclusions.

“When it’s just one result, you always want more data, more studies, more samples to confirm it and rule out a laboratory error or a methodological problem,” he said.

早翻片了,你这个让云南的蝙蝠心里咋合计?刚给洞口封上,里面正忙活造假呢,别乱了节奏。
 

lindamy

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所有和主流民主国家不一样的发现都会被冠以阴谋论而扼杀。:evil:
这文章说,加拿大很多城市自从2018年3月起也保留了地下水的样本,最初是为了检测毒品。
 

lindamy

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Live Updates: Trump official claims coronavirus leak from Chinese lab a 'credible possibility'

President Trump and other top officials have floated the theory that the virus leaked from a lab​

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Fox News Flash top headlines are here. Check out what's clicking on Foxnews.com.

A top Trump administration national security official recently claimed there was a "growing body of evidence" to support the theory that COVID-19 leaked from a Chinese government-run lab in Wuhan.

Deputy National Security Adviser Matthew Pottinger made the claim in a recent virtual conference call with British lawmakers regarding China. During the call, Pottinger asserted that officials within China have rejected the theory that the virus originated from a wet market in Wuhan.

"There is a growing body of evidence to say that a laboratory leak or accident is very much a credible possibility," Pottinger said during the call. "Even establishment figures in Beijing have openly dismissed the wet market story."

FAST FACTS​

  • Last month, an Associated Press investigation found that Chinese authorities were "strictly controlling" research into the pandemic’s origins.
  • U.S. officials have repeatedly accused China of withholding critical information about the pandemic’s severity
President Trump and other top officials have floated the theory that the virus leaked from a lab. To date, no evidence has emerged to support that claim.

 
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光放

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这就是话语权
 

changyang

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为啥当时没有引起大量肺炎传播,只在武汉出现肺炎是个问题
 

rentcfc

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为啥当时没有引起大量肺炎传播,只在武汉出现肺炎是个问题
变异了呗,就和SARS突然消失,英国变重突然传播能力变强一样。突然容易人传人了呗。西班牙大流感,艾滋病为啥突然大传播,以前没有。差不多道理。
 

lindamy

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为啥当时没有引起大量肺炎传播,只在武汉出现肺炎是个问题
意大利,美国,英国,西班牙等地都有过2019年或者以前严重肺炎爆发,和死亡的报道。
 

臭农民

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口吐粉莲,冒红光,接着洗
 

superlover

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仔细看报道,我记得只是测出某一个月样本不是所有月水样本都有新冠病毒
后来也再没有下文。

的确很多地方偶发疑似肺炎病例和事后新冠抗体阳性, 但并无扎实证据(无样本做PCR)

在所有可靠详实证据出来之前,目前还只能认定武汉是发源地
 

lindamy

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说得很清楚,是发现痕迹,没有人说下任何关于起源的结论。
 

贵圈

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如何知道当时有没有新冠?

陈旧血液样品, 测试的是特异性抗体是否存在, 特异性抗体, 这种检测, 是否准确? 很不准确! 既包括感染初期的人的血液样品, 测抗体结果都不准确. 因此, 从来不能作为感染检测的金标准.

陈旧水体样品, 测试的是gnome, 也就是遗传物质片段. 也就是说, 测试出一段排列, 如果这段排列, 符合新冠的一部分. 这种测试, 更扯淡.

如何确认陈旧样品的确是新冠? 大量样品, 大量测试, 最后统计学确认.
 

uf65ca

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Evidence of SARS-CoV-2 RNA in an Oropharyngeal Swab Specimen, Milan, Italy, Early December 2019


这个可是 小孩子的病例样本,以前报道过法国还有一例 2019 十二月份 同样是病人样本中 发现这个病毒。

美国也有同样的病人或者死人的样本,但是 CDC 不允许 州里自己检测,样本送到CDC 就没下文了,估计销毁了。
 
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