Origins of virus responsible for Covid-19 traced to horseshoe bats
2 years, 10 months ago

Origins of virus responsible for Covid-19 traced to horseshoe bats

The Independent  

Get the free Morning Headlines email for news from our reporters across the world Sign up to our free Morning Headlines email Sign up to our free Morning Headlines email SIGN UP I would like to be emailed about offers, events and updates from The Independent. It is clear that recombination is a defining feature of SARS-related coronaviruses and essential to account for when examining the viruses’ evolution Spyros Lytras SARS-related coronaviruses, which include SARS-CoV-2, are dispersed over a large geographical area across China and South East Asia. Professor David L Robertson, senior author on the study, said: “Our analysis highlights the need for dramatically more wildlife sampling to pinpoint the exact origins of SARS-CoV-2 and understand more fully the risk of infection of humans by viruses like these across China and South East Asia. “The finding of bat coronaviruses that can so readily use the human – and other mammals’ – ACE2 receptor without having to undergo any significant evolutionary change underscores the inevitability of future spillovers.” The new research analysed a wide distribution of related viruses in bats, with shared markers of viral recombination suggesting that SARS-CoV-2 ancestors were frequently transmitting amongst bats species, with the virus changing and recombining over time as host bats were infected with two coronaviruses at once. “It is clear that recombination is a defining feature of SARS-related coronaviruses and essential to account for when examining the viruses’ evolution.” Scientists said that more research is needed to pinpoint the exact origins of SARS-CoV-2’s progenitor to help prepare for the future.

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History of this topic

Wuhan Market: More Likely Origin of COVID-19 Virus Than Previously Thought
2 months, 1 week ago

Wuhan Market: More Likely Origin of COVID-19 Virus Than Previously Thought

The Hindu  

A new study suggests that the Wuhan market in China was the origin of the COVID-19 virus. The data, which was shared publicly by the Chinese Center for Disease Control and Prevention, included genetic material from more than 800 samples collected at the Huanan market shortly after its closure in early 2020. The researchers found that the virus and the …

Humans give more viruses to animals than they give us, study finds
9 months, 1 week ago

Humans give more viruses to animals than they give us, study finds

Hindustan Times  

Some of the deadliest diseases to stalk humankind have come from pathogens that jumped from animals to people. "This really highlights our enormous impact on the environment and the animals around us," said Cedric Tan, a doctoral student in computational biology at the University College London Genetics Institute, lead author of the study published this week in the journal Nature …

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

Is THIS how the Covid pandemic began after all? Study finds strain of virus in PANGOLINS was nearly identical to the strain in humans

Daily Mail  

As infectious disease experts continue to probe the true origin of the Covid pandemic, new research is making a case for pangolins as the middlemen between the original animal host and humans. The research team found the strain of coronavirus harbored in the rare animal was nearly identical to the one that has pummeled humans, leading them to theorize that …

Explained | A boost to the zoonoses theory regarding the origins of the SARS-CoV-2 virus
1 year, 9 months ago

Explained | A boost to the zoonoses theory regarding the origins of the SARS-CoV-2 virus

The Hindu  

The story so far: In the never-ending debate about the origin of the virus that set off the COVID-19 pandemic, there is now fresh grist for the mill for those who have held out for the zoonotic angle — that the infection skipped from animals to humans. Undisclosed genetic data from a food market in Wuhan has been unearthed and …

What does the science say about the origin of the SARS-CoV-2 pandemic?
1 year, 10 months ago

What does the science say about the origin of the SARS-CoV-2 pandemic?

NPR  

What does the science say about the origin of the SARS-CoV-2 pandemic? Enlarge this image toggle caption Noel Celis/AFP via Getty Images Noel Celis/AFP via Getty Images Since the SARS-CoV-2 pandemic began three years ago, its origin has been a topic of much scientific — and political — debate. Enlarge this image toggle caption Noel Celis/AFP via Getty Images Noel …

Covid-19 variants still transmissible between species, finds new study
2 years, 1 month ago

Covid-19 variants still transmissible between species, finds new study

Hindustan Times  

The SARS-CoV-2 virus is still highly transmissible between mammals, according to a study based on computer simulations. The findings, published in the journal Royal Society Open Science, show how the viral spike proteins in several SARS-CoV-2 variants interact with the host cell receptors known as ACE2 in both humans and various bats of genus Rhinolophus. "We were hoping to see …

Explained: Can Khosta-2 be catastrophic like COVID-19?
2 years, 3 months ago

Explained: Can Khosta-2 be catastrophic like COVID-19?

Live Mint  

After COVID-19 tormented us for more than 2 years, now a new SARS-CoV-2-like virus - Khosta-2 - has been discovered in Russian bats which has the potential to infect humans, a new study has revealed. "Our research further demonstrates that sarbecoviruses circulating in wildlife outside of Asia -- even in places like western Russia where the Khosta-2 virus was found …

Vaccine-resistant new COVID-like virus discovered in Russian bats could infect humans, finds study
2 years, 3 months ago

Vaccine-resistant new COVID-like virus discovered in Russian bats could infect humans, finds study

Firstpost  

Washington: A newS-CoV-2-like virus discovered in Russian bats is capable of infecting humans, and is resistant to current vaccines against COVID-19, a study has found. A team led by researchers at Washington State University, US, found spike proteins from the bat virus, named Khosta-2, can infect human cells and is resistant to both the antibody therapies and blood serum from …

Bat coronaviruses silently infect tens of thousands of people each year, posing pandemic risk, study warns
2 years, 4 months ago

Bat coronaviruses silently infect tens of thousands of people each year, posing pandemic risk, study warns

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy There may be an average of over 65,000 cases of bat coronaviruses silently infecting people …

Covid virus likely leaked from Wuhan lab: WHO chief Tedros Ghebreyesus
2 years, 6 months ago

Covid virus likely leaked from Wuhan lab: WHO chief Tedros Ghebreyesus

India TV News  

Highlights Most likely explanation for Covid was a catastrophic accident at laboratory in Wuhan, says WHO chief Publicly, the UN health agency maintains that "all hypotheses remain on the table" At the beginning of the Covid, WHO was criticised for its deferential approach to China Just days after saying that the Covid lab leak theory needs "further investigations", the World …

Why pangolins may not be the intermediate host
2 years, 7 months ago

Why pangolins may not be the intermediate host

The Hindu  

The origin debate on novel coronavirus is yet to be settled. However, the scientists were not able to find infectious pangolin coronavirus in organs other than the respiratory system and brain, which is different from hamsters infected by SARS-CoV-2 virus. Viral shedding by hamsters infected with pangolin coronavirus lasted for three days, while hamsters infected with SARS-CoV-2 shed virus for …

'Early version of Covid-19' is discovered in Chinese lab
2 years, 10 months ago

'Early version of Covid-19' is discovered in Chinese lab

Daily Mail  

Scientists have found traces of coronavirus that could bolster the theory that the pandemic began with a leak from a laboratory. Scientists have found traces of coronavirus that could bolster the theory that the pandemic began with a leak from a laboratory Scientists in Hungary found traces of a unique variant of coronavirus while examining DNA from soil from Antarctica …

Pandemic mystery: Scientists focus on COVID’s animal origins
3 years ago

Pandemic mystery: Scientists focus on COVID’s animal origins

Associated Press  

Nearly two years into the COVID-19 pandemic, the origin of the virus tormenting the world remains shrouded in mystery. “The lab-leak scenario gets a lot of attention, you know, on places like Twitter,” but “there’s no evidence that this virus was in a lab,” said University of Utah scientist Stephen Goldstein, who with 20 others wrote an article in the …

Column: A new research paper adds to the evidence that COVID-19 came from animals, not a Chinese lab
3 years, 1 month ago

Column: A new research paper adds to the evidence that COVID-19 came from animals, not a Chinese lab

LA Times  

Medical staff help a patient walk into the hospital in Wuhan, China, in January 2020 as the pandemic was beginning. A new peer-reviewed research paper points to the likelihood that the COVID-19 pandemic originated at a seafood and wildlife market in Wuhan, China, rather than from a Chinese laboratory studying bat viruses. Worobey’s finding that the earliest identified COVID-19 cases …

A reminder from SARS-CoV-2
3 years, 2 months ago

A reminder from SARS-CoV-2

The Hindu  

Viruses are one of the most persistent and potent forces of evolution, writes Pranay Lal in his new book, Invisible Empire: The Natural History of Viruses. Genetic monsters Viruses together with other microbes speed up the gene exchange between similar and often unrelated life forms. When virologists teased open the RNA of SARS-CoV-2, they found that it carried genes that …

Origins of Covid-19 may never be known, says US intelligence agencies
3 years, 2 months ago

Origins of Covid-19 may never be known, says US intelligence agencies

India Today  

US intelligence agencies said on Friday they may never be able to identify the origins of COVID-19, as they released a new, more detailed version of their review of whether the coronavirus came from animal-to-human transmission or leaked from a lab. Former Republican President Donald Trump - who lost his bid for re-election as the deadly pandemic ravaged the U.S. …

Scientists find bats with Covid-like viruses in Laos caves
3 years, 3 months ago

Scientists find bats with Covid-like viruses in Laos caves

India Today  

Scientists have discovered another clue to the origins of the virus that causes Covid-19, with bats living in caves in Laos found to be carrying a similar pathogen that experts suggest could potentially infect humans directly. Researchers from France's Pasteur Institute and the National University of Laos said their findings showed that viruses genetically close to the SARS-CoV-2 virus "exist …

COVID-19 origins: China rejects WHO proposal to return to Wuhan
3 years, 5 months ago

COVID-19 origins: China rejects WHO proposal to return to Wuhan

Al Jazeera  

China has rejected a proposal from the World Health Organization that the expert team investigating the origins of COVID-19 should return to the sites in China where the coronavirus first emerged, saying researchers should instead make a priority of the “very likely” possibility that the virus originated in animals and expand their work to other countries around the world. Speaking …

Evidence points to natural origin of Covid, not lab-leak: Scientists
3 years, 6 months ago

Evidence points to natural origin of Covid, not lab-leak: Scientists

India TV News  

An international team of scientists in a new study has claimed that evidence points to the natural origin of Covid, debunking the theory that Covid-19 leaked out of a Chinese laboratory. "Aside from the 1977 A/H1N1 influenza pandemic that likely originated from a large-scale vaccine challenge trial, there are no documented examples of human epidemics or pandemics resulting from research …

New Evidence Shows Covid-19 Evolved Naturally, Scientists Write in Lancet
3 years, 6 months ago

New Evidence Shows Covid-19 Evolved Naturally, Scientists Write in Lancet

News 18  

There is no scientifically validated evidence to support the theory that the coronavirus leaked from a laboratory in China, and more recent, peer-reviewed studies strongly suggest that the virus evolved in nature, a group of scientists wrote in The Lancet journal. “We believe the strongest clue from new, credible, and peer-reviewed evidence in the scientific literature is that the virus …

Covid-19 Virus Highly Adapted to Infect Human Cells, Reveals Study
3 years, 6 months ago

Covid-19 Virus Highly Adapted to Infect Human Cells, Reveals Study

News 18  

The SARS-CoV-2 virus, which causes Covid-19, is most ideally adapted to infect human cells, rather than bat or pangolin cells, according to a study which raises questions about the origin of the virus. "The computer modelling found the virus's ability to bind to the bat ACE2 protein was poor relative to its ability to bind human cells, Winkler said. This …

Covid-19 virus highly adapted to infect human cells, finds study
3 years, 6 months ago

Covid-19 virus highly adapted to infect human cells, finds study

India Today  

The SARS-CoV-2 virus, which causes Covid-19, is most ideally adapted to infect human cells, rather than bat or pangolin cells, according to a study which raises questions about the origin of the virus. "The computer modelling found the virus's ability to bind to the bat ACE2 protein was poor relative to its ability to bind human cells,” Winkler said. This …

Peter Daszak was studying Coronavirus in China a year before Covid-19
3 years, 6 months ago

Peter Daszak was studying Coronavirus in China a year before Covid-19

Op India  

On June 14, it was reported that a video had emerged showing live bats in Wuhan Institute of Virology, adding to the theory that the SARS-CoV-2 virus may have leaked from the institute, accidentally or otherwise. These viruses include those able to bind to ACE2, the human cell-surface receptor for SARS-CoV, and able to infect and cause illness in the …

Origin unclear: The Hindu Editorial on the source of the coronavirus
3 years, 6 months ago

Origin unclear: The Hindu Editorial on the source of the coronavirus

The Hindu  

Over 17 months after WHO first reported a cluster of cases of pneumonia of unknown cause in Wuhan, China, scientists are yet to determine with certainty how the SARS-CoV-2 virus emerged. While the civet cat and dromedary camel were quickly identified to be the intermediate hosts of SARS and MERS, respectively, it took years to identify the horseshoe bat that …

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 …

COVID-19 origin: Why the lab leak theory must be formally investigated
3 years, 7 months ago

COVID-19 origin: Why the lab leak theory must be formally investigated

Firstpost  

There are still many unanswered questions: we don’t know how the virus arrived in Wuhan, how its sequence evolved to allow human infection, and under what conditions it infected the first people who crossed its path A year and a half into the pandemic, we still do not know exactly where the SARS-CoV-2 virus, which causes Covid-19, came from. But …

Explained | Why has Joe Biden ordered an investigation into the origins of SARS-CoV-2?
3 years, 7 months ago

Explained | Why has Joe Biden ordered an investigation into the origins of SARS-CoV-2?

The Hindu  

The story so far: On May 14, a group of 18 scientists, most of them from the U.S., led by David A. Relman, published a letter in the journal Science, calling for further investigation to determine the origin of the COVID-19 pandemic. Since there was no conclusive evidence for either hypothesis — natural spillover or lab leak — there were …

World Health Assembly under lens as demand for fuller probe into China link to Covid-19 grows
3 years, 7 months ago

World Health Assembly under lens as demand for fuller probe into China link to Covid-19 grows

Hindustan Times  

Amidst a US intelligence report that advocates a larger probe into the possibility that the Covid-19 virus could have leaked from China’s Wuhan Institute of Virology, the World Health Assembly is meeting today to pass an anodyne resolution on setting up of an inter-governmental working group to further discuss the submitted three reports investigating the origins of the global pandemic …

Justice for Covid-19 victims: Why we must know where SARS-CoV-2 came from
3 years, 7 months ago

Justice for Covid-19 victims: Why we must know where SARS-CoV-2 came from

India Today  

More than 16.25 crore people have contracted SARS-CoV-2 infection since Covid-19 broke out in China towards the end of 2019. The natural origin theory became a scientific belief after an article was published by The Lancet in February 2020, within two months of China notifying the WHO about the Covid-19 outbreak. This makes SARS-CoV-2 unique and if evidence to the …

Bat out of hell? Covid is global but questions over Wuhan lab leak won't go away
3 years, 7 months ago

Bat out of hell? Covid is global but questions over Wuhan lab leak won't go away

India Today  

“In the wake of any disaster -- a train derailment, a plane crash, a rocket explosion, a reactor meltdown, a terror attack or a war -- the causes of the disaster are investigated and the findings are used to inform policy changes to reduce the risks and the impacts of future disasters. Given the fact that Wuhan, the place where …

WHO Covid-19 origin report says virus likely spread to people from an animal – but needs more study
3 years, 9 months ago

WHO Covid-19 origin report says virus likely spread to people from an animal – but needs more study

CNN  

CNN — The novel coronavirus that causes Covid-19 probably spread to people through an animal, and probably started spreading among humans no more than a month or two before it was noticed in December of 2019, according a new 120-page report from the World Health Organization. The report says introduction through cold food products is considered a “possible pathway” and …

WHO draft report says animals are likely source of covid-19
3 years, 9 months ago

WHO draft report says animals are likely source of covid-19

Live Mint  

Beijing, 29 March: A joint WHO-China study on the origins of covid-19 says that transmission of the virus from bats to humans through another animal is the most likely scenario and that a lab leak is “extremely unlikely,” according to a draft copy obtained by The Associated Press. However, the report says that “the evolutionary distance between these bat viruses …

Leaked WHO report says COVID likely passed from bats to humans through another animal
3 years, 9 months ago

Leaked WHO report says COVID likely passed from bats to humans through another animal

Deccan Chronicle  

BEIJING: A joint WHO-China study on the origins of COVID-19 says that transmission of the virus from bats to humans through another animal is the most likely scenario and that a lab leak is “extremely unlikely,” according to a draft copy obtained by The Associated Press. However, the report says that “the evolutionary distance between these bat viruses and SARS-CoV-2 …

WHO-China study on COVID-19 origin says transmission from bats to humans via another animal 'very likely'
3 years, 9 months ago

WHO-China study on COVID-19 origin says transmission from bats to humans via another animal 'very likely'

ABC  

A joint WHO-China study on the origins of COVID-19 says that transmission of the virus from bats to humans through another animal is the most likely scenario. Key points: The Associated Press says it has obtained a draft copy of the report that outlines the study's findings Overall, the findings are largely as expected and left many questions unanswered The …

Next Pandemic: Scientists Fear Another Coronavirus Could Jump From Animals To Humans
3 years, 9 months ago

Next Pandemic: Scientists Fear Another Coronavirus Could Jump From Animals To Humans

NPR  

Next Pandemic: Scientists Fear Another Coronavirus Could Jump From Animals To Humans Enlarge this image toggle caption Steeve Jordan/AFP via Getty Images Steeve Jordan/AFP via Getty Images When the pandemic began last year, scientists went looking for the origins of the coronavirus. Sponsor Message This past year, Holmes and his colleagues trapped several hundred bats in a tiny section of …

Scientists may have figured out how SARS-CoV-2 jumped from animals to humans
3 years, 9 months ago

Scientists may have figured out how SARS-CoV-2 jumped from animals to humans

Salon  

The origin story for the novel coronavirus was always a bit nebulous. A member of a World Health Organization investigative team told NPR earlier this week that they believe southern Chinese wildlife farms were most likely the source of the outbreak; they noted that the Chinese government shut down these farms in February 2020. "They take exotic animals, like civets, …

Anticipating WHO's COVID-19 origins report, tensions rise between US, China
3 years, 9 months ago

Anticipating WHO's COVID-19 origins report, tensions rise between US, China

Firstpost  

The much-anticipated report from the international mission to Wuhan to investigate Covid-19’s origins is set to be published this week, following intense US and Chinese pressure over its contents. “There was conduit from Wuhan to the provinces in south China where the closest relative viruses to SARS-CoV-2 are found in bats,” Daszak told an event hosted by Britain’s Chatham House …

Research team locates 24 bat coronaviruses in southwestern China
3 years, 9 months ago

Research team locates 24 bat coronaviruses in southwestern China

India TV News  

During the search for the origin of the novel coronavirus, an international team of scientists has found 24 previously unknown bat coronaviruses, with four of them related to the strain that causes COVID-19, within a 4 km radius in southwestern China. One virus carried 'a genomic backbone arguably the closest to SARS-CoV-2 identified to date, but none appeared to be …

Coronavirus jumped from bats to humans with 'very little change', say scientists
3 years, 9 months ago

Coronavirus jumped from bats to humans with 'very little change', say scientists

India Today  

The progenitor of the novel coronavirus underwent "very little change" to adapt to humans from bats, according to a new study which suggests that the ability of the virus to spread from one person to another likely evolved in the flying mammal prior to it jumping to its new human host. "Usually viruses that jump to a new host species …

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

The Hindu Explains | What has the WHO team’s field visit to China thrown up regarding the spread of SARS-CoV-2?

The Hindu  

The story so far: After several months of delay, concerns over access, and bickering between China and the U.S., a 17-member team from the World Health Organisation began a field visit on January 29, 2021, to unearth the origin of the SARS-CoV-2 virus that has so far spread to over 108 million people and killed nearly 2.4 million people across …

Origin and spread: The Hindu Editorial on identifying the source of SARS-CoV-2
3 years, 10 months ago

Origin and spread: The Hindu Editorial on identifying the source of SARS-CoV-2

The Hindu  

By concluding that a virus leak from a laboratory in China’s Wuhan, where the SARS-CoV-2 virus first emerged, is “extremely unlikely” and did not require further study, a 17-member WHO team and its Chinese counterparts have put to rest conspiracy theories that emerged early during the pandemic. While many scientists had dismissed the lab-origin theory, in mid-February 2020, a group …

WHO Dismisses Theory That Virus Escaped From Lab As 'Extremely Unlikely'
3 years, 10 months ago

WHO Dismisses Theory That Virus Escaped From Lab As 'Extremely Unlikely'

Huff Post  

LOADING ERROR LOADING A group of World Health Organization researchers called the theory that the coronavirus pandemic is the result of a Chinese lab accident “extremely unlikely” following two weeks of fieldwork looking into the pandemic’s origins. That determination was made after “long, frank, open discussions with researchers and management” at the Wuhan Institute of Virology ― the lab suspected …

Where did coronavirus originate and what is China hiding from rest of the world
3 years, 10 months ago

Where did coronavirus originate and what is China hiding from rest of the world

Op India  

Where did Chinese coronavirus come from? The dark day that plunged the world into lockdown Shi Zhengli, famously called the ‘bat woman’ of China, has actively worked on coronavirus and has identified dozens of strains that can potentially cause an epidemic. According to DRASTIC, a network of researchers and scientists, this particular database is the most important bat coronavirus database …

World Health Organization team in China says COVID-19 probably came from animals, but no evidence it originated in bats
3 years, 11 months ago

World Health Organization team in China says COVID-19 probably came from animals, but no evidence it originated in bats

ABC  

The World Health Organization team in the Chinese city of Wuhan says viruses similar to SARS-CoV-2 can be found in many animals, but they have been unable to find direct evidence of animal-human transmission. Key points: Bats and pangolins could possibly be the reservoir due to high similarities of genetic sequence But there was no evidence to suggest their coronavirus …

Coronavirus | WHO team visits Wuhan virus lab at centre of speculation
3 years, 11 months ago

Coronavirus | WHO team visits Wuhan virus lab at centre of speculation

The Hindu  

World Health Organisation investigators on Wednesday visited a research centre in the Chinese city of Wuhan that has been the subject of speculation about the origins of the coronavirus, with one member saying they intended to meet key staff and press them on critical issues. Uniformed and plainclothes security guards stood watch along the facility’s gated front entrance, but there …

COVID ‘could have been contained’: Taiwan’s ex-health minister
3 years, 11 months ago

COVID ‘could have been contained’: Taiwan’s ex-health minister

Al Jazeera  

Chen Chien-jen says prompt action in December 2019 could have averted a pandemic that has now killed more than two million people. The coronavirus pandemic could have been contained if the authorities in Wuhan had notified the World Health Organization earlier and allowed an expert team to investigate in December 2019, according to Chen Chien-jen, Taiwan’s former vice-president, a renowned …

‘Animals most susceptible to coronavirus infection after humans’
4 years ago

‘Animals most susceptible to coronavirus infection after humans’

Hindustan Times  

Humans, followed by ferrets, and to a lesser extent cats, civets and dogs are the animals most likely to be infected with the novel coronavirus, according to a new study which analysed ten different species for their susceptibility to the virus which causes Covid-19. The findings, published in the journal PLOS Computational Biology, found that ducks, rats, mice, pigs and …

Slow progress: On WHO's assurance to uncover origin of COVID-19
4 years, 1 month ago

Slow progress: On WHO's assurance to uncover origin of COVID-19

The Hindu  

In 2003, a WHO team was able to identify the animal source of SARS coronavirus within weeks despite its arrival in China nearly three months after the initial outbreak. Soon after the virus spread around the world, there was heightened demand to identify its origin in China’s Wuhan where the first case cluster was reported. Even as the global focus …

2 viruses closely related to coronavirus found in Japan, Cambodia
4 years, 1 month ago

2 viruses closely related to coronavirus found in Japan, Cambodia

Hindustan Times  

Researchers, health experts and scientists across the globe have agreed that Sars-CoV-2, the virus which causes the coronavirus disease, originated through bats or pangolins. Now, a recent discovery has revealed a form of coronavirus very closely related to the current one in horseshoe bats stored in a freezer in Cambodia, researchers told scientific journal Nature. These findings do not give …

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