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Javier E

A Deadly Coronavirus Was Inevitable. Why Was No One Ready? - WSJ - 0 views

  • When Disease X actually arrived, as Covid-19, governments, businesses, public-health officials and citizens soon found themselves in a state of chaos, battling an invisible enemy with few resources and little understanding—despite years of work that outlined almost exactly what the virus would look like and how to mitigate its impact.
  • Governments had ignored clear warnings and underfunded pandemic preparedness. They mostly reacted to outbreaks, instead of viewing new infectious diseases as major threats to national security. And they never developed a strong international system for managing epidemics, even though researchers said the nature of travel and trade would spread infection across borders.
  • Underlying it all was a failure that stretches back decades. Most everyone knew such an outcome was possible. And yet no one was prepared.
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  • Last year, a Chinese scientist he worked with published a specific forecast: “It is highly likely that future SARS- or MERS-like coronavirus outbreaks will originate from bats, and there is an increased probability that this will occur in China.”
  • Humans today are exposed to more deadly new pathogens than ever. They typically come from animals, as global travel, trade and economic development, such as meat production and deforestation, push people, livestock and wildlife closer together
  • Scientists knew infectious disease outbreaks were becoming more common, with 2010 having more than six times the outbreaks of pathogens from animal origins than in 1980, according to data in a study by Brown University researchers.
  • Yet plenty was left undone, in areas including funding, early-warning systems, the role of the WHO and coordination with China. A big chunk of U.S. funding went toward protecting Americans against a bioterror attack. Government funding for pandemics has come largely in emergency, one-time packages to stop an ongoing outbreak.
  • She said a better solution would be to fund public health more like national defense, with much more guaranteed money, year in, year out.
  • “Will there be another human influenza pandemic?” Dr. Webster asked in a paper presented at an NIH meeting in 1995. “The certainty is that there will be.”
  • Experts including Dr. Webster were particularly concerned about the potential for spillover in southern China, where large, densely populated cities were expanding rapidly into forests and agricultural lands, bringing people into closer contact with animals. Two of the three influenza pandemics of the 20th century are thought to have originated in China.
  • Dr. Webster and others warned it could re-emerge or mutate into something more contagious. With U.S. funding, he set up an animal influenza surveillance center in Hong Kong. The WHO, which hadn’t planned for pandemics before, started compiling protocols for a large-scale outbreak, including contingency plans for vaccines.
  • At a dinner back in the U.S., he remembers one guest saying, “Oh, you really needed to have someone in the U.S. to be impacted to really galvanize the government.”
  • That “drove home the reality in my own mind of globalization,” said Dr. Fukuda. SARS showed that viruses can crisscross the globe by plane in hours, making a local epidemic much more dangerous.
  • The WHO’s director-general, Gro Harlem Brundtland, publicly criticized China. The government under new leaders reversed course. It implemented draconian quarantines and sanitized cities, including a reported 80 million people enlisted to clean streets in Guangdong.
  • By May 2003, the number of new SARS cases was dwindling. It infected around 8,000 people world-wide, killing nearly 10%.
  • After SARS, China expanded epidemiologist training and increased budgets for new laboratories. It started working more closely in public health with the U.S., the world’s leader. The U.S. CDC opened an office in Beijing to share expertise and make sure coverups never happened again. U.S. CDC officials visiting a new China CDC campus planted a friendship tree.
  • In Washington in 2005, a powerful player started driving U.S. efforts to become more prepared. President George W. Bush had read author John M. Barry’s “The Great Influenza,” a history of the 1918 flu pandemic
  • Mr. Bush leaned toward the group of 10 or so officials and said, “I want to see a plan,” according to Dr. Venkayya. “He had been asking questions and not getting answers,” recalled Dr. Venkayya, now president of Takeda Pharmaceutical Co. ’s global vaccine business unit. “He wanted people to see this as a national threat.”
  • Mr. Bush launched the strategy in November, and Congress approved $6.1 billion in one-time funding.
  • The CDC began exercises enacting pandemic scenarios and expanded research. The government created the Biomedical Advanced Research and Development Authority to fund companies to develop diagnostics, drugs and vaccines.
  • A team of researchers also dug into archives of the 1918 pandemic to develop guidelines for mitigating the spread when vaccines aren’t available. The tactics included social distancing, canceling large public gatherings and closing schools—steps adopted this year when Covid-19 struck, though at the time they didn’t include wide-scale lockdowns.
  • A year after the plan was released, a progress report called for more real-time disease surveillance and preparations for a medical surge to care for large numbers of patients, and stressed strong, coordinated federal planning.
  • A European vaccine makers’ association said its members had spent around $4 billion on pandemic vaccine research and manufacturing adjustments by 2008.
  • The $6.1 billion Congress appropriated for Mr. Bush’s pandemic plan was spent mostly to make and stockpile medicines and flu vaccines and to train public-health department staff. The money wasn’t renewed. “The reality is that for any leader it’s really hard to maintain a focus on low-probability high-consequence events, particularly in the health arena,” Dr. Venkayya said.
  • In the U.S., President Barack Obama’s administration put Mr. Bush’s new plan into action for the first time. By mid-June, swine flu, as it was dubbed, had jumped to 74 countries. The WHO officially labeled it a pandemic, despite some evidence suggesting the sickness was pretty mild in most people.
  • That put in motion a host of measures, including some “sleeping” contracts with pharmaceutical companies to begin vaccine manufacturing—contracts that countries like the United Kingdom had negotiated ahead of time so they wouldn’t have to scramble during an outbreak.
  • In August, a panel of scientific advisers to Mr. Obama published a scenario in which as many as 120 million Americans, 40% of the population, could be infected that year, and up to 90,000 people could die.
  • H1N1 turned out to be much milder. Although it eventually infected more than 60 million Americans, it killed less than 13,000. In Europe, fewer than 5,000 deaths were reported.
  • The WHO came under fire for labeling the outbreak a pandemic too soon. European lawmakers, health professionals and others suggested the organization may have been pressured by the pharmaceutical industry.
  • France ordered 94 million doses, but had logged only 1,334 serious cases and 312 deaths as of April 2010. It managed to cancel 50 million doses and sell some to other countries, but it was still stuck with a €365 million tab, or about $520 million at the time, and 25 million extra doses.
  • The WHO had raised scares for SARS, mad-cow disease, bird flu and now swine flu, and it had been wrong each time, said Paul Flynn, a member of the Council of Europe’s Parliamentary Assembly and a British lawmaker, at a 2010 health committee hearing in Strasbourg.
  • Ultimately, an investigation by the council’s committee accused the WHO and public-health officials of jumping the gun, wasting money, provoking “unjustified fear” among Europeans and creating risks through vaccines and medications that might not have been sufficiently tested.
  • “I thought you might have uttered a word of regret or an apology,” Mr. Flynn told Dr. Fukuda, who as a representative of the WHO had been called to testify.
  • Back in Washington, scientist Dennis Carroll, at the U.S. Agency for International Development, was also convinced that flu wasn’t the only major pandemic threat. In early 2008, Dr. Carroll was intrigued by Dr. Daszak’s newly published research that said viruses from wildlife were a growing threat, and would emerge most frequently where development was bringing people closer to animals.
  • If most of these viruses spilled over to humans in just a few places, including southern China, USAID could more easily fund an early warning system.
  • “You didn’t have to look everywhere,” he said he realized. “You could target certain places.” He launched a new USAID effort focused on emerging pandemic threats. One program called Predict had funding of about $20 million a year to identify pathogens in wildlife that have the potential to infect people.
  • Drs. Daszak, Shi and Wang, supported by funds from Predict, the NIH and China, shifted their focus to Yunnan, a relatively wild and mountainous province that borders Myanmar, Laos and Vietnam.
  • One key discovery: a coronavirus resembling SARS that lab tests showed could infect human cells. It was the first proof that SARS-like coronaviruses circulating in southern China could hop from bats to people. The scientists warned of their findings in a study published in the journal Nature in 2013.
  • Evidence grew that showed people in the area were being exposed to coronaviruses. One survey turned up hundreds of villagers who said they recently showed symptoms such as trouble breathing and a fever, suggesting a possible viral infection.
  • Over the next several years, governments in the U.S. and elsewhere found themselves constantly on the defensive from global viral outbreaks. Time and again, preparedness plans proved insufficient. One, which started sickening people in Saudi Arabia and nearby
  • On a weekend morning in January 2013, more than a dozen senior Obama administration officials met in a basement family room in the suburban home of a senior National Security Council official. They were brainstorming how to help other countries upgrade their epidemic response capabilities, fueled by bagels and coffee. Emerging disease threats were growing, yet more than 80% of the world’s countries hadn’t met a 2012 International Health Regulations deadline to be able to detect and respond to epidemics.
  • The session led to the Global Health Security Agenda, launched by the U.S., the WHO and about 30 partners in early 2014, to help nations improve their capabilities within five years.
  • Money was tight. The U.S. was recovering from the 2008-09 financial crisis, and federal funding to help U.S. states and cities prepare and train for health emergencies was declining. Public-health departments had cut thousands of jobs, and outdated data systems weren’t replaced.
  • “It was a Hail Mary pass,” said Tom Frieden, who was director of the CDC from 2009 to 2017 and a force behind the creation of the GHSA. “We didn’t have any money.”
  • At the WHO, Dr. Fukuda was in charge of health security. When the Ebola outbreak was found in March 2014, he and his colleagues were already stretched, after budget cuts and amid other crises.
  • The United Nations created a special Ebola response mission that assumed the role normally played by the WHO. Mr. Obama sent the U.S. military to Liberia, underscoring the inability of international organizations to fully handle the problem.
  • It took the WHO until August to raise an international alarm about Ebola. By then, the epidemic was raging. It would become the largest Ebola epidemic in history, with at least 28,600 people infected, and more than 11,300 dead in 10 countries. The largest outbreak before that, in Uganda, had involved 425 cases.
  • Congress passed a $5.4 billion package in supplemental funds over five years, with about $1 billion going to the GHSA. The flood of money, along with aggressive contact tracing and other steps, helped bring the epidemic to a halt, though it took until mid-2016.
  • Global health experts and authorities called for changes at the WHO to strengthen epidemic response, and it created an emergencies program. The National Security Council warned that globalization and population growth “will lead to more pandemics,” and called for the U.S. to do more.
  • r. Carroll of USAID, who had visited West Africa during the crisis, and saw some health workers wrap themselves in garbage bags for protection, started conceiving of a Global Virome Project, to detect and sequence all the unknown viral species in mammals and avian populations on the planet.
  • Billionaire Bill Gates warned in a TED talk that an infectious disease pandemic posed a greater threat to the world than nuclear war, and urged world leaders to invest more in preparing for one. The Bill & Melinda Gates Foundation helped form a new initiative to finance vaccines for emerging infections, the Coalition for Epidemic Preparedness Innovations.
  • Congress established a permanent Infectious Diseases Rapid Response Fund for the CDC in fiscal 2019, with $50 million for that year and $85 million in fiscal 2020.
  • In May 2018, John Bolton, then President Trump’s national security adviser, dismantled an NSC unit that had focused on global health security and biodefense, with staff going to other units. The senior director of the unit left.
  • It pushed emerging disease threats down one level in the NSC hierarchy, making pandemics compete for attention with issues such as North Korea, said Beth Cameron, a previous senior director of the unit. She is now vice president for global biological policy and programs at the Nuclear Threat Initiative.
  • Deteriorating relations with China reduced Washington’s activities there just as researchers were becoming more certain of the threat from coronaviruses.
  • Dr. Carroll had earlier been ordered to suspend his emerging pandemic threats program in China.
  • Dr. Carroll pitched to USAID his Global Virome Project. USAID wasn’t interested, he said. He left USAID last year. A meeting that Dr. Carroll planned for last August with the Chinese CDC and Chinese Academy of Sciences to form a Chinese National Virome Project was postponed due to a bureaucratic hang-up. Plans to meet are now on hold, due to Covid-19.
Javier E

Opinion | H5N1 Bird Flu is Causing Alarm. Here's Why We Must Act. - The New York Times - 0 views

  • Bird flu — known more formally as avian influenza — has long hovered on the horizons of scientists’ fears. This pathogen, especially the H5N1 strain, hasn’t often infected humans, but when it has, 56 percent of those known to have contracted it have died. Its inability to spread easily, if at all, from one person to another has kept it from causing a pandemic.
  • But things are changing. The virus, which has long caused outbreaks among poultry, is infecting more and more migratory birds, allowing it to spread more widely, even to various mammals, raising the risk that a new variant could spread to and among people.
Javier E

Opinion | An Iconic Landscape, Threatened by Trees - The New York Times - 0 views

  • For a host of ingenious reasons, Native people had long set fire to the prairie: to rejuvenate vegetation and attract bison herds, to ward off mosquitoes and snakes, to ease travel, even to hinder their enemies in battle. Intentionally or not, they were also keeping the Eastern redcedar at bay, confining the scrappy conifer to the prairie’s deepest wrinkles.
  • white settlers were slow to catch on. Confronted by fire, wild or not, they fought back, desperate to save their homes, their crops, their livestock, their culture at large. At the same time, they planted trees in a land without: for shelter, for timber, for shade, for a touch of their forested homelands back east
  • “Trees were so rare in that country, and they had to make such a hard fight to grow, that we used to feel anxious about them, and visit them as if they were persons,”
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  • The federal government encouraged this practice from the start. The Timber Culture Act passed in 1873, permitted homesteaders to claim an additional 160 acres of free land by planting trees on at least a quarter of it. Decades later, desperate to curb the Dust Bowl, President Franklin Roosevelt channeled roughly $14 million — mostly via emergency relief and the Works Progress Administration — to the Prairie States Forestry Project, resulting in nearly 19,000 miles of windbreaks throughout the Great Plains, many of them composed of Eastern redcedar.
  • Still today, the Department of Agriculture subsidizes the planting of redcedar for everything from windbreaks to wildlife habitat. State programs provide similar cost-share programs, and it’s from all of these plantings (and more) the spread — or the “encroachment,” as ecologists call it — generally begins.
  • In 2018, the rangeland ecologist Dirac Twidwell and his colleagues at the University of Nebraska began the Eastern Redcedar Science Literacy Project to catalog the fallout
  • Eastern redcedar can transform a thriving tallgrass prairie into a closed canopy woodland in just 40 years. In the process, critical biodiversity is evicted from the landscape. The majority of grassland bird species are no longer present where Eastern redcedar cover exceeds just 10 percent of land cover. Beyond 30 percent, most small mammals vanish, too. And as too many ranchers and other land managers can now attest, both forage production and plant diversity take a nosedive in the Green Glacier’s wake.
  • Allergies. Wildfires. Tick-borne disease. All of these problems climb while stream flow and groundwater recharge rates often decline. True, a juniper woodland sequesters more carbon. But the grassland it muscled out was a more reliable carbon sink, storing more than 90 percent of its capture underground, safe from wildfires that would send that carbon into the atmosphere. From virtually every angle — environmental or economic, livestock or literature, air quality or landscape aesthetics — the Green Glacier is a problem.
  • “The Great Plains biome is dying,” Dr. Twidwell said. “Losing grasslands at this scale is akin to losing tropical rainforests or coral reefs.”
  • for decades now, discussion about the Green Glacier has been largely relegated to the dusty confines of trade journals and agricultural conventions. Perhaps this is because the vast majority of our remaining grasslands are privately owned. Perhaps, as our forests burn and our levees break, there is little sympathy left for the livestock industry, responsible for roughly 15 percent of the world’s greenhouse gas emissions — never mind the many effects of tree encroachment that bleed far beyond the ranch.
  • If America wants to preserve what’s left of Cather’s spiritual homeland, something greater than what Dr. Twidwell calls “postage-stamp prairies,” then “the clock is ticking,”
  • The good news is that prescribed fire, where done repeatedly, has proved to effectively halt the Green Glacier’s spread. In fact, the Loess Canyons Rangeland Alliance, a group of neighboring landowners in southwestern Nebraska, is one of the first documented groups to halt the encroachment on a regional scale.
Javier E

Opinion | The Pandemic Probably Started in a Lab. These 5 Key Points Explain Why. - The... - 0 views

  • a growing volume of evidence — gleaned from public records released under the Freedom of Information Act, digital sleuthing through online databases, scientific papers analyzing the virus and its spread, and leaks from within the U.S. government — suggests that the pandemic most likely occurred because a virus escaped from a research lab in Wuhan, China.
  • If so, it would be the most costly accident in the history of science.
  • The SARS-like virus that caused the pandemic emerged in Wuhan, the city where the world’s foremost research lab for SARS-like viruses is located.
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  • Dr. Shi’s group was fascinated by how coronaviruses jump from species to species. To find viruses, they took samples from bats and other animals, as well as from sick people living near animals carrying these viruses or associated with the wildlife trade. Much of this work was conducted in partnership with the EcoHealth Alliance, a U.S.-based scientific organization that, since 2002, has been awarded over $80 million in federal funding to research the risks of emerging infectious diseases.
  • Their research showed that the viruses most similar to SARS‑CoV‑2, the virus that caused the pandemic, circulate in bats that live roughly 1,000 miles away from Wuhan. Scientists from Dr. Shi’s team traveled repeatedly to Yunnan province to collect these viruses and had expanded their search to Southeast Asia. Bats in other parts of China have not been found to carry viruses that are as closely related to SARS-CoV-2.
  • When the Covid-19 outbreak was detected, Dr. Shi initially wondered if the novel coronavirus had come from her laboratory, saying she had never expected such an outbreak to occur in Wuhan.
  • The SARS‑CoV‑2 virus is exceptionally contagious and can jump from species to species like wildfire. Yet it left no known trace of infection at its source or anywhere along what would have been a thousand-mile journey before emerging in Wuhan.
  • The year before the outbreak, the Wuhan institute, working with U.S. partners, had proposed creating viruses with SARS‑CoV‑2’s defining feature
  • The laboratory pursued risky research that resulted in viruses becoming more infectious: Coronaviruses were grown from samples from infected animals and genetically reconstructed and recombined to create new viruses unknown in nature. These new viruses were passed through cells from bats, pigs, primates and humans and were used to infect civets and humanized mice (mice modified with human genes). In essence, this process forced these viruses to adapt to new host species, and the viruses with mutations that allowed them to thrive emerged as victors.
  • Worse still, as the pandemic raged, their American collaborators failed to publicly reveal the existence of the Defuse proposal. The president of EcoHealth, Peter Daszak, recently admitted to Congress that he doesn’t know about virus samples collected by the Wuhan institute after 2015 and never asked the lab’s scientists if they had started the work described in Defuse.
  • By 2019, Dr. Shi’s group had published a database describing more than 22,000 collected wildlife samples. But external access was shut off in the fall of 2019, and the database was not shared with American collaborators even after the pandemic started, when such a rich virus collection would have been most useful in tracking the origin of SARS‑CoV‑2. It remains unclear whether the Wuhan institute possessed a precursor of the pandemic virus.
  • In 2021, The Intercept published a leaked 2018 grant proposal for a research project named Defuse, which had been written as a collaboration between EcoHealth, the Wuhan institute and Ralph Baric at the University of North Carolina, who had been on the cutting edge of coronavirus research for years. The proposal described plans to create viruses strikingly similar to SARS‑CoV‑2.
  • Coronaviruses bear their name because their surface is studded with protein spikes, like a spiky crown, which they use to enter animal cells. The Defuse project proposed to search for and create SARS-like viruses carrying spikes with a unique feature: a furin cleavage site — the same feature that enhances SARS‑CoV‑2’s infectiousness in humans, making it capable of causing a pandemic. Defuse was never funded by the United States.
  • owever, in his testimony on Monday, Dr. Fauci explained that the Wuhan institute would not need to rely on U.S. funding to pursue research independently.
  • While it’s possible that the furin cleavage site could have evolved naturally (as seen in some distantly related coronaviruses), out of the hundreds of SARS-like viruses cataloged by scientists, SARS‑CoV‑2 is the only one known to possess a furin cleavage site in its spike. And the genetic data suggest that the virus had only recently gained the furin cleavage site before it started the pandemic.
  • Ultimately, a never-before-seen SARS-like virus with a newly introduced furin cleavage site, matching the description in the Wuhan institute’s Defuse proposal, caused an outbreak in Wuhan less than two years after the proposal was drafted.
  • When the Wuhan scientists published their seminal paper about Covid-19 as the pandemic roared to life in 2020, they did not mention the virus’s furin cleavage site — a feature they should have been on the lookout for, according to their own grant proposal, and a feature quickly recognized by other scientists.
  • At the Wuhan Institute of Virology, a team of scientists had been hunting for SARS-like viruses for over a decade, led by Shi Zhengl
  • In May, citing failures in EcoHealth’s monitoring of risky experiments conducted at the Wuhan lab, the Biden administration suspended all federal funding for the organization and Dr. Daszak, and initiated proceedings to bar them from receiving future grants. In his testimony on Monday, Dr. Fauci said that he supported the decision to suspend and bar EcoHealth.
  • Separately, Dr. Baric described the competitive dynamic between his research group and the institute when he told Congress that the Wuhan scientists would probably not have shared their most interesting newly discovered viruses with him. Documents and email correspondence between the institute and Dr. Baric are still being withheld from the public while their release is fiercely contested in litigation.
  • In the end, American partners very likely knew of only a fraction of the research done in Wuhan. According to U.S. intelligence sources, some of the institute’s virus research was classified or conducted with or on behalf of the Chinese military.
  • In the congressional hearing on Monday, Dr. Fauci repeatedly acknowledged the lack of visibility into experiments conducted at the Wuhan institute, saying, “None of us can know everything that’s going on in China, or in Wuhan, or what have you. And that’s the reason why — I say today, and I’ve said at the T.I.,” referring to his transcribed interview with the subcommittee, “I keep an open mind as to what the origin is.”
  • The Wuhan lab pursued this type of work under low biosafety conditions that could not have contained an airborne virus as infectious as SARS‑CoV‑2.
  • Labs working with live viruses generally operate at one of four biosafety levels (known in ascending order of stringency as BSL-1, 2, 3 and 4) that describe the work practices that are considered sufficiently safe depending on the characteristics of each pathogen. The Wuhan institute’s scientists worked with SARS-like viruses under inappropriately low biosafety conditions.
  • ​​Biosafety levels are not internationally standardized, and some countries use more permissive protocols than others.
  • In one experiment, Dr. Shi’s group genetically engineered an unexpectedly deadly SARS-like virus (not closely related to SARS‑CoV‑2) that exhibited a 10,000-fold increase in the quantity of virus in the lungs and brains of humanized mice. Wuhan institute scientists handled these live viruses at low biosafety levels, including BSL-2.
  • Even the much more stringent containment at BSL-3 cannot fully prevent SARS‑CoV‑2 from escaping. Two years into the pandemic, the virus infected a scientist in a BSL-3 laboratory in Taiwan, which was, at the time, a zero-Covid country. The scientist had been vaccinated and was tested only after losing the sense of smell. By then, more than 100 close contacts had been exposed. Human error is a source of exposure even at the highest biosafety levels, and the risks are much greater for scientists working with infectious pathogens at low biosafety.
  • An early draft of the Defuse proposal stated that the Wuhan lab would do their virus work at BSL-2 to make it “highly cost-effective.” Dr. Baric added a note to the draft highlighting the importance of using BSL-3 to contain SARS-like viruses that could infect human cells, writing that “U.S. researchers will likely freak out.”
  • Years later, after SARS‑CoV‑2 had killed millions, Dr. Baric wrote to Dr. Daszak: “I have no doubt that they followed state determined rules and did the work under BSL-2. Yes China has the right to set their own policy. You believe this was appropriate containment if you want but don’t expect me to believe it. Moreover, don’t insult my intelligence by trying to feed me this load of BS.”
  • SARS‑CoV‑2 is a stealthy virus that transmits effectively through the air, causes a range of symptoms similar to those of other common respiratory diseases and can be spread by infected people before symptoms even appear. If the virus had escaped from a BSL-2 laboratory in 2019, the leak most likely would have gone undetected until too late.
  • One alarming detail — leaked to The Wall Street Journal and confirmed by current and former U.S. government officials — is that scientists on Dr. Shi’s team fell ill with Covid-like symptoms in the fall of 2019. One of the scientists had been named in the Defuse proposal as the person in charge of virus discovery work. The scientists denied having been sick.
  • The hypothesis that Covid-19 came from an animal at the Huanan Seafood Market in Wuhan is not supported by strong evidence.
  • In December 2019, Chinese investigators assumed the outbreak had started at a centrally located market frequented by thousands of visitors daily. This bias in their search for early cases meant that cases unlinked to or located far away from the market would very likely have been missed
  • To make things worse, the Chinese authorities blocked the reporting of early cases not linked to the market and, claiming biosafety precautions, ordered the destruction of patient samples on January 3, 2020, making it nearly impossible to see the complete picture of the earliest Covid-19 cases. Information about dozens of early cases from November and December 2019 remains inaccessible.
  • A pair of papers published in Science in 2022 made the best case for SARS‑CoV‑2 having emerged naturally from human-animal contact at the Wuhan market by focusing on a map of the early cases and asserting that the virus had jumped from animals into humans twice at the market in 2019
  • More recently, the two papers have been countered by other virologists and scientists who convincingly demonstrate that the available market evidence does not distinguish between a human superspreader event and a natural spillover at the market.
  • Furthermore, the existing genetic and early case data show that all known Covid-19 cases probably stem from a single introduction of SARS‑CoV‑2 into people, and the outbreak at the Wuhan market probably happened after the virus had already been circulating in humans.
  • Not a single infected animal has ever been confirmed at the market or in its supply chain. Without good evidence that the pandemic started at the Huanan Seafood Market, the fact that the virus emerged in Wuhan points squarely at its unique SARS-like virus laboratory.
  • With today’s technology, scientists can detect how respiratory viruses — including SARS, MERS and the flu — circulate in animals while making repeated attempts to jump across species. Thankfully, these variants usually fail to transmit well after crossing over to a new species and tend to die off after a small number of infections
  • investigators have not reported finding any animals infected with SARS‑CoV‑2 that had not been infected by humans. Yet, infected animal sources and other connective pieces of evidence were found for the earlier SARS and MERS outbreaks as quickly as within a few days, despite the less advanced viral forensic technologies of two decades ago.
  • Even though Wuhan is the home base of virus hunters with world-leading expertise in tracking novel SARS-like viruses, investigators have either failed to collect or report key evidence that would be expected if Covid-19 emerged from the wildlife trade. For example, investigators have not determined that the earliest known cases had exposure to intermediate host animals before falling ill.
  • No antibody evidence shows that animal traders in Wuhan are regularly exposed to SARS-like viruses, as would be expected in such situations.
  • In previous outbreaks of coronaviruses, scientists were able to demonstrate natural origin by collecting multiple pieces of evidence linking infected humans to infected animals
  • In contrast, virologists and other scientists agree that SARS‑CoV‑2 required little to no adaptation to spread rapidly in humans and other animals. The virus appears to have succeeded in causing a pandemic upon its only detected jump into humans.
  • it was a SARS-like coronavirus with a unique furin cleavage site that emerged in Wuhan, less than two years after scientists, sometimes working under inadequate biosafety conditions, proposed collecting and creating viruses of that same design.
  • a laboratory accident is the most parsimonious explanation of how the pandemic began.
  • Given what we now know, investigators should follow their strongest leads and subpoena all exchanges between the Wuhan scientists and their international partners, including unpublished research proposals, manuscripts, data and commercial orders. In particular, exchanges from 2018 and 2019 — the critical two years before the emergence of Covid-19 — are very likely to be illuminating (and require no cooperation from the Chinese government to acquire), yet they remain beyond the public’s view more than four years after the pandemic began.
  • it is undeniable that U.S. federal funding helped to build an unprecedented collection of SARS-like viruses at the Wuhan institute, as well as contributing to research that enhanced them.
  • Advocates and funders of the institute’s research, including Dr. Fauci, should cooperate with the investigation to help identify and close the loopholes that allowed such dangerous work to occur. The world must not continue to bear the intolerable risks of research with the potential to cause pandemics.
  • A successful investigation of the pandemic’s root cause would have the power to break a decades-long scientific impasse on pathogen research safety, determining how governments will spend billions of dollars to prevent future pandemics. A credible investigation would also deter future acts of negligence and deceit by demonstrating that it is indeed possible to be held accountable for causing a viral pandemic
  • Last but not least, people of all nations need to see their leaders — and especially, their scientists — heading the charge to find out what caused this world-shaking event. Restoring public trust in science and government leadership requires it.
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