西班牙从去年3月废水中检出新冠病毒
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travelkey2014
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川普老是说中国病毒, 我们也可以说2009年发生了一场美国猪疫。
chicago666
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病毒能活这么长时间？
这个我表示怀疑。
这是病毒，离了活体根本无法繁殖。而且，如果这么容易检测那就不会有那么多假阴性加阳性了。
检测水质量只要把检测结果记下来就行了，还留样干啥?
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Flushing out a virus: How our wastewater may help identify future waves of COVID-19
Flushing out a virus: How our wastewater may help identify future waves of COVID-19
Robert Delatolla, an engineering professor at the University of Ottawa, is part of a team that has come up with a process to detect tiny, broken-down bits of severe acute respiratory syndrome coronavirus 2, aka SARS-CoV-2, in the region’s wastewater.
hongjuan
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猪脑子是不会问，为什么一直流行但不死人到医院失控
CCP Virus 是中共制造中共扩散的，会水落石出的
傻逼
整个帖子貌似就你一个猪脑子
看了。说实在话，我觉得这些人是骗经费的。Flushing out a virus: How our wastewater may help identify future waves of COVID-19
Flushing out a virus: How our wastewater may help identify future waves of COVID-19
Robert Delatolla, an engineering professor at the University of Ottawa, is part of a team that has come up with a process to detect tiny, broken-down bits of severe acute respiratory syndrome coronavirus 2, aka SARS-CoV-2, in the region’s wastewater.ottawacitizen.com
各种各样的chemicals混在一起，说能检出某种drugs我觉得还可能，说检出covid19我表示怀疑。这比那个华裔博士的小盒子不靠谱多了。
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Exclusive: Covid-19 may not have originated in China, Oxford University expert believes
Dr Tom Jefferson, senior CEBM tutor, believes that many viruses lie dormant throughout the globe, and emerge when conditions are favourable
BySarah Knapton, SCIENCE EDITOR5 July 2020 • 4:41pm
'There is quite a lot of evidence that huge amounts of the virus in sewage all over the place, and an increasing amount of evidence there is faecal transmission' CREDIT: REUTERS
Coronavirus may have lain dormant across the world and emerged when environmental conditions were right for it to thrive - rather than starting in China, an Oxford University expert believes.
Dr Tom Jefferson, senior associate tutor at the Centre for Evidence-Based Medicine (CEBM), at Oxford, and visiting professor at Newcastle University, argues that there is growing evidence that the virus was elsewhere before it emerged in Asia.
Last week, Spanish virologists announced they had found traces of the disease in samples of waste water collected in March 2019, nine months before the coronavirus disease was seen in China.
Italian scientists have also found evidence of coronavirus in sewage samples in Milan and Turin, in mid-December, many weeks before the first case was detected, while experts have found traces in Brazil in November.
Coronavirus may have lain dormant across the world and emerged when environmental conditions were right for it to thrive - rather than starting in China, an Oxford University expert believes.
Dr Tom Jefferson, senior associate tutor at the Centre for Evidence-Based Medicine (CEBM), at Oxford, and visiting professor at Newcastle University, argues that there is growing evidence that the virus was elsewhere before it emerged in Asia.
Last week, Spanish virologists announced they had found traces of the disease in samples of waste water collected in March 2019, nine months before the coronavirus disease was seen in China.
Italian scientists have also found evidence of coronavirus in sewage samples in Milan and Turin, in mid-December, many weeks before the first case was detected, while experts have found traces in Brazil in November.
Dr Jefferson believes that many viruses lie dormant throughout the globe and emerge when conditions are favourable. It also means they can vanish as quickly as they arrive.
"Where did Sars 1 go? It’s just disappeared," he said "So we have to think about these things. We need to start researching the ecology of the virus, understanding how it originates and mutates.
"I think the virus was already here, here meaning everywhere. We may be seeing a dormant virus that has been activated by environmental conditions.
"There was a case in the Falkland Islands in early February. Now where did that come from? There was a cruise ship that went from South Georgia to Buenos Aires, and the passengers were screened and then on day eight, when they started sailing towards the Weddell Sea, they got the first case. Was it in prepared food that was defrosted and activated?
"Strange things like this happened with Spanish Flu. In 1918 around 30 per cent of the population of Western Samoa died of Spanish Flu, and they hadn’t had any communication with the outside world.
"The explanation for this could only be that these agents don’t come or go anywhere. They are always here and something ignites them, maybe human density or environmental conditions, and this is what we should be looking for."
Dr Jefferson believes that the virus may be transmitted through the sewage system or shared toilet facilities, not just through droplets expelled by talking, coughing and sneezing.
Writing in The Telegraph, Dr Jefferson and Professor Carl Henegehan, Director of the CEBM, call for an in-depth investigation similar to that carried out by John Snow in 1854, which showed cholera was spreading in London from an infected well in Soho.
Exploring why so many outbreaks happen at food factories and meatpacking plants could uncover major new transmission routes, they believe. It may be shared toilet facilities coupled with cool conditions that allow the virus to thrive.
"We’re doing a living review, extracting environmental conditions, the ecology of these viruses which has been grossly understudied," said Dr Jefferson.
"There is quite a lot of evidence that huge amounts of the virus in sewage all over the place, and an increasing amount of evidence there is faecal transmission. There is a high concentration where sewage is four degrees, which is the ideal temperature for it to be stabled and presumably activated. And meatpacking plants are often at four degrees.
"These meat packing clusters and isolated outbreaks don’t fit with respiratory theory, they fit with people who haven’t washed their hands properly.
"These outbreaks need to be investigated properly with people on the ground one by one. You need to do what John Snow did. You question people, and you start constructing hypotheses that fit the facts, not the other way around."
Dr Tom Jefferson, senior CEBM tutor, believes that many viruses lie dormant throughout the globe, and emerge when conditions are favourable
BySarah Knapton, SCIENCE EDITOR5 July 2020 • 4:41pm
'There is quite a lot of evidence that huge amounts of the virus in sewage all over the place, and an increasing amount of evidence there is faecal transmission' CREDIT: REUTERS
Coronavirus may have lain dormant across the world and emerged when environmental conditions were right for it to thrive - rather than starting in China, an Oxford University expert believes.
Dr Tom Jefferson, senior associate tutor at the Centre for Evidence-Based Medicine (CEBM), at Oxford, and visiting professor at Newcastle University, argues that there is growing evidence that the virus was elsewhere before it emerged in Asia.
Last week, Spanish virologists announced they had found traces of the disease in samples of waste water collected in March 2019, nine months before the coronavirus disease was seen in China.
Italian scientists have also found evidence of coronavirus in sewage samples in Milan and Turin, in mid-December, many weeks before the first case was detected, while experts have found traces in Brazil in November.
Coronavirus may have lain dormant across the world and emerged when environmental conditions were right for it to thrive - rather than starting in China, an Oxford University expert believes.
Dr Tom Jefferson, senior associate tutor at the Centre for Evidence-Based Medicine (CEBM), at Oxford, and visiting professor at Newcastle University, argues that there is growing evidence that the virus was elsewhere before it emerged in Asia.
Last week, Spanish virologists announced they had found traces of the disease in samples of waste water collected in March 2019, nine months before the coronavirus disease was seen in China.
Italian scientists have also found evidence of coronavirus in sewage samples in Milan and Turin, in mid-December, many weeks before the first case was detected, while experts have found traces in Brazil in November.
Dr Jefferson believes that many viruses lie dormant throughout the globe and emerge when conditions are favourable. It also means they can vanish as quickly as they arrive.
"Where did Sars 1 go? It’s just disappeared," he said "So we have to think about these things. We need to start researching the ecology of the virus, understanding how it originates and mutates.
"I think the virus was already here, here meaning everywhere. We may be seeing a dormant virus that has been activated by environmental conditions.
"There was a case in the Falkland Islands in early February. Now where did that come from? There was a cruise ship that went from South Georgia to Buenos Aires, and the passengers were screened and then on day eight, when they started sailing towards the Weddell Sea, they got the first case. Was it in prepared food that was defrosted and activated?
"Strange things like this happened with Spanish Flu. In 1918 around 30 per cent of the population of Western Samoa died of Spanish Flu, and they hadn’t had any communication with the outside world.
"The explanation for this could only be that these agents don’t come or go anywhere. They are always here and something ignites them, maybe human density or environmental conditions, and this is what we should be looking for."
Dr Jefferson believes that the virus may be transmitted through the sewage system or shared toilet facilities, not just through droplets expelled by talking, coughing and sneezing.
Writing in The Telegraph, Dr Jefferson and Professor Carl Henegehan, Director of the CEBM, call for an in-depth investigation similar to that carried out by John Snow in 1854, which showed cholera was spreading in London from an infected well in Soho.
Exploring why so many outbreaks happen at food factories and meatpacking plants could uncover major new transmission routes, they believe. It may be shared toilet facilities coupled with cool conditions that allow the virus to thrive.
"We’re doing a living review, extracting environmental conditions, the ecology of these viruses which has been grossly understudied," said Dr Jefferson.
"There is quite a lot of evidence that huge amounts of the virus in sewage all over the place, and an increasing amount of evidence there is faecal transmission. There is a high concentration where sewage is four degrees, which is the ideal temperature for it to be stabled and presumably activated. And meatpacking plants are often at four degrees.
"These meat packing clusters and isolated outbreaks don’t fit with respiratory theory, they fit with people who haven’t washed their hands properly.
"These outbreaks need to be investigated properly with people on the ground one by one. You need to do what John Snow did. You question people, and you start constructing hypotheses that fit the facts, not the other way around."
