Uncovering the origins of the virus that sparked a pandemic
3 years, 6 months ago

Uncovering the origins of the virus that sparked a pandemic

CNN  

CNN — Unlocking the mysteries of the exact origins of SARS-CoV-2, the virus that causes Covid-19 and launched a global pandemic in March 2020, has become one of the most burning questions in the scientific community. “The place where all of the nearest coronaviruses are known to exist in nature is about 1,000 miles from the place where the first human cases arose,” he said, calling it a “big geographic gap.” “Second, in the place where the disease started, we have some of the world’s largest collections of bat samples, and in particular, of bat samples containing these very bat coronaviruses – the nearest known relatives. To confirm the lab-leak theory, Relman said, what’s needed is “evidence that the encounter took place in a laboratory, perhaps during the course of an experiment where, perhaps, the virus was being cultivated and they didn’t realize that they had SARS CoV-2 … evidence that a sample they never did sequence, but put into culture, in fact had SARS CoV-2, for example,” he said, adding that “there are thousands of samples” the lab hasn’t carefully sequenced yet. “It’s not close enough to say it’s the exact virus that gave rise to this one, in a simple evolutionary step,” Relman said. And despite the best efforts, it’s been 44 years since the first cases of Ebola, but as Fauci pointed out, “We haven’t yet nailed that down.” Says Relman: “We need to all accept the possibility that we may never arrive at a definite answer about where the virus and the disease first arose.” But, he said after his letter, “My impression is that there’s a growing willingness to both look at this question in a dispassionate objective way, but also to accept that there truly are multiple possibilities here.”

History of this topic

New genetic research points to Wuhan animal market as origin of COVID pandemic, study says
3 months, 2 weeks ago
COVID-19: Why we're looking for the pandemic's origin
9 months, 3 weeks ago
Michael Gove suggests to Covid-19 inquiry that virus was ‘man-made’
1 year, 1 month ago
Is THIS how the Covid pandemic began after all? Study finds strain of virus in PANGOLINS was nearly identical to the strain in humans
1 year, 3 months ago
Explained | A boost to the zoonoses theory regarding the origins of the SARS-CoV-2 virus
1 year, 9 months ago
The latest in the COVID 'lab leak' theory: What we know and don't know about the origins of the pandemic
1 year, 10 months ago
U.S. agency says COVID came from “lab leak”, China slams “smear”
1 year, 10 months ago
COVID-19 origin theories: Was there a lab leak in Wuhan or the US?
2 years, 2 months ago
New studies bolster theory coronavirus emerged from the wild
2 years, 5 months ago
New studies bolster theory coronavirus emerged from the wild
2 years, 5 months ago
Covid virus likely leaked from Wuhan lab: WHO chief Tedros Ghebreyesus
2 years, 6 months ago
Origins of virus responsible for Covid-19 traced to horseshoe bats
2 years, 10 months ago
Leak from Wuhan lab the 'more likely' origin of Covid pandemic: Molecular biologist tells UK Parliament
3 years ago
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3 years ago
Pandemic mystery: Scientists focus on covid’s animal origins
3 years ago
Column: A new research paper adds to the evidence that COVID-19 came from animals, not a Chinese lab
3 years, 1 month ago
US intel doesn’t expect to determine origins of COVID-19
3 years, 2 months ago
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3 years, 3 months ago
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3 years, 3 months ago
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3 years, 4 months ago
Explained | Is there a Wuhan connection to the study on bat viruses in Nagaland?
3 years, 6 months ago
Origin unclear: The Hindu Editorial on the source of the coronavirus
3 years, 6 months ago
Circumstantial Evidence Points at Possible Wuhan Lab Leak, Says Indian Scientist On Origin of Covid-19
3 years, 6 months ago
Covid China: No bats or pangolins sold at Wuhan wet markets before pandemic, Oxford study says
3 years, 6 months ago
EXPLAINER: The US investigation into COVID-19 origins
3 years, 7 months ago
Explained: Why the US is investigating lab leak theory to unravel Covid-19 origins
3 years, 7 months ago
Why are calls growing to investigate the Wuhan lab leak theory?
3 years, 7 months ago
JASPER BECKER: No wonder so many experts say Covid DID leak from Wuhan research centre
3 years, 7 months ago
COVID-19 origin: Why the lab leak theory must be formally investigated
3 years, 7 months ago
Lab Leak Theory Gathers More Attention; New Study Claims 'No Credible Natural Ancestor' To Covid
3 years, 7 months ago
'Scientists Silenced and Disappeared': New Study Says China Created Virus in Lab, Tried to Cover Tracks
3 years, 7 months ago
World Health Assembly under lens as demand for fuller probe into China link to Covid-19 grows
3 years, 7 months ago
Bat out of hell? Covid is global but questions over Wuhan lab leak won't go away
3 years, 7 months ago
Knowing Covid's origin critical for future outbreaks: 18 scientists write demanding broader inquiry
3 years, 7 months ago
WHO report: COVID likely 1st jumped into humans from animals
3 years, 9 months ago
Leaked WHO report says COVID likely passed from bats to humans through another animal
3 years, 9 months ago
WHO-China study on COVID-19 origin says transmission from bats to humans via another animal 'very likely'
3 years, 9 months ago
Covid-19 origin: WHO expert says wildlife trade most likely pathway for coronavirus to arrive in Wuhan
3 years, 9 months ago
What happened in Wuhan? Why questions still linger on the origin of the coronavirus
3 years, 9 months ago
Animals were likely source of coronavirus, not lab leak, WHO says
3 years, 9 months ago
Research team locates 24 bat coronaviruses in southwestern China
3 years, 9 months ago
German Scientist is Convinced Covid-19 Leaked From Wuhan Lab Despite WHO Dismissing Theory
3 years, 10 months ago
The Hindu Explains | What has the WHO team’s field visit to China thrown up regarding the spread of SARS-CoV-2?
3 years, 10 months ago
EXPLAINER: What the WHO coronavirus experts learned in Wuhan
3 years, 10 months ago
Origin and spread: The Hindu Editorial on identifying the source of SARS-CoV-2
3 years, 10 months ago
Explainer: What the WHO coronavirus experts learned in Wuhan
3 years, 10 months ago
WHO Dismisses Theory That Virus Escaped From Lab As 'Extremely Unlikely'
3 years, 10 months ago
Coronavirus | WHO team visits Wuhan virus lab at centre of speculation
3 years, 11 months ago

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