The lack of information raises more questions. Recently, 24 scientists sent a letter to the World Health Organization (WHO) asking for an independent and rigorous investigation because they thought that the international investigation to China in early February was not deep enough. US President Joe Biden on May 26 also ordered intelligence forces to “double efforts” to investigate the origin of the Covid-19 pandemic, including the possibility of a leak “from a laboratory accident”. While the theory that the corona virus leaked from the laboratory was “resurrected”, two competing groups of experts in the study of bat diseases in Wuhan became the target of criticism. The reason is that they are willing to ignore safety measures during research. Many new diseases in the past originated in bats. Photo: SCMP. “Batwoman” and Wuhan Institute of Virology Nicknamed “bat woman”, Dr. Shi Zhengli is a famous Chinese corona virus researcher. She has identified many strains of the virus similar to SARS (severe acute respiratory distress syndrome) over the years and forewarned of new pandemic risks. Thach’s laboratory at the Wuhan Institute of Virology (WIV) also discovered and studied viruses that are closely related to corona virus. However, the scientists point out that the two viruses are still decades apart in natural evolution. According to the report of the WHO expert team, Ms. Thach said that all field activities were carried out with full protective clothing, including N95 masks, overalls, visors, and gloves. However, in a speech in June 2018, Ms. Thach said that is not the case. “Most of the time, we’ll wear simpler protective gear, and that’s fine,” Thach said in her speech. That’s because most diseases in bats can’t be directly transmitted to humans, but can only be through intermediate animals, Ms. Thach explained. To illustrate, Ms. Thach showed the audience during the presentation a photo of her team casting nets to catch bats in the cave and sorting the samples. Some people on the team only wore medical masks and thin rubber gloves, while others used their bare hands and did not wear masks. “When are we going to strengthen the protective gear? For example, when there are too many bats in the cave or when there is a lot of dust when entering the cave,” Thach said. When the pandemic hit, Ms. Thach became quiet and appeared only occasionally. On February 2, 2020, she posted to friends on the social network WeChat and “swore on her life” that her lab was not related to the pandemic. Three months later, Ms. Thach continued to post denying rumors that she had brought intelligence files to the West, according to Global Times . Chinese virologist Shi Zhengli at the Wuhan Institute of Virology. Photo: AFP. When suspicions fell on the WIV, Ms. Thach sent a statement to the scientific journal Science in July. She said the corona virus could not have come from the WIV because her team did not encounter this strain during research. In addition, every employee here has tested negative for corona virus antibodies. According to Ms. Thach, before the pandemic, her team “never exposed or studied this virus, and did not know of its existence”. But she also admitted that her lab has not yet sequenced the genes of every sample due to financial and human constraints. She declined to say how many samples remain unsequenced. In January, Thach’s laboratory was questioned even more after the US State Department announced that there were “reasons to believe” that some WIV researchers showed symptoms similar to Covid-19 in the fall of 2019. May, Wall Street Journal also cited intelligence reports that three WIV researchers had been so sick that they needed to be examined. Vien Chi Minh, WIV’s laboratory director, called this a “blatant lie” in response to state media. Bat explorer and Wuhan CDC CDC During this time, the Wuhan Center for Disease Control and Prevention (CDC) lab was less visible than the WIV. The WHO expert team’s report on the trip to the Wuhan CDC did not include notes on research safety measures. According to the report, the laboratory moved on December 2, 2019 to a location near the Huanan market – the market that was linked to the first cases of corona virus infection. “Such activity can disrupt the operation of any laboratory,” the WHO expert team said. However, the Wuhan CDC laboratory did not record any interruptions, according to the WHO expert. The Wuhan CDC is the place to monitor China’s initial response to the pandemic. At the Wuhan CDC, there is also a person who regularly works with bats – Dien Tuan Hoa. According to the Washington Post , in terms of position, Dien Tuan Hoa is a deputy technician in the pest control department of the Wuhan CDC. But Mr. Dien is known for being an aggressive adventurer when it comes to working with bats and insects. “He often goes to places that other people cannot find to get the necessary specimens,” a colleague said of Mr. Dien on a local TV station in January 2020. “He can confidently say that he can catch what others can’t.” Tian Junhua on a field trip to collect insects in Hubei province. Photo: China Daily. Using nets and traps, Mr. Dien’s team caught 155 bats in his home province of Hubei, and hundreds of bats in other areas for research in 2013. Mr. Dien was also a member of the team. discovered 1,445 new vertebrate RNA virus species. This result was published in a famous scientific journal Nature in 2016. Once, Wuhan CDC held an internal meeting with the theme “Learning from the achievements of Dien Tuan Hoa”. “No one can remember how many mountains he climbed, how many rivers he waded, how many bat caves he explored, how many stables he crawled, and how many landfills he had to search,” the CDC wrote of the event. However, Mr. Dien also admitted that sometimes he did not comply with research safety rules. In 2017, Mr. Dien told the state newspaper Wuhan Evening News that he once forgot his personal protective equipment, so he had to be isolated at home for 2 weeks after being shot in the body by bat urine. On several other occasions, he got bat blood on his skin while trying to control the animal with forceps, Mr. Dien said. On February 3, 2020, Mr. Dien’s team continued to appear in the journal Nature with early-stage clinical descriptions of a corona virus patient in Wuhan. The team’s research indicates that bats can be a host for pathogens. But when Covid-19 spread, Mr. Dien became quiet. March 2020, the state newspaper Health Times An anonymous source said Mr. Dien was not infected with corona virus. According to the article, Mr. Dien was in a bad mood because of rumors about whether he was patient zero. According to a report at the end of March by the WHO expert team, the Wuhan CDC denied storing or experimenting with bat viruses before the pandemic took place. However, in a video, Mr. Dien said he had been to dozens of bat caves and studied 300 types of virus vectors. Also from March, Mr. Dien no longer spoke in public. This highlights the challenge of an independent investigation into the origins of Covid-19: Many of the people who might have had key information in Wuhan are now silent. Mr. Dien continued to research during this time. In August 2020, Mr. Dien was a co-author on a study on ticks. Another of his November 2020 studies focused on antibiotic resistance genes in fish. Mr. Dien no longer speaks or publishes research on bats.

Front of Wuhan Institute of Virology Photo: Reuters This information adds weight to calls for a more complete investigation into the possibility that the COVID-19 pandemic virus escaped from this laboratory. The above content is mentioned in a report from the Donald Trump administration, which said that some researchers at the Wuhan Institute of Virology (WIV), a center dedicated to research on corona viruses and other pathogens, had fell ill in the fall of 2019 “with symptoms resembling COVID-19 and common seasonal flu.” U.S. officials and former officials with intelligence on researchers in Wuhan expressed differing views on the strength of the evidence outlined in the report. One said that information was provided by an international partner and could be important, but needed further investigation. Others claim that the information is very reliable. “The information that we have comes from a variety of sources and is of very good quality. It is very accurate. What the report doesn’t talk about is the exact reason why they got the disease,” the source told Journal City Wall . Many epidemiologists and virologists believe that November 2019 was the time when SARS-CoV-2, the virus that causes the COVID-19 pandemic, began to spread in Wuhan. Beijing says that the first confirmed case in the city fell ill on December 8. China has repeatedly denied that the virus escaped from laboratories. On May 23, China’s Ministry of Foreign Affairs cited a report published by an investigation team led by the World Health Organization (WHO) after a visit to the Wuhan Institute of Viruses (WIV), saying that the virus leaked from the laboratory. experience is extremely unlikely. “The US continues to hype the theory of lab leaks. Are they really interested in traceability or are they trying to distract? China’s Foreign Ministry said. However, WIV does not share with the WHO team raw data, diaries and lab records where a lot of coronaviruses from bats are studied, the animals that many scientists consider most likely to be the animals. origin of the virus. WHO Director-General Tedros Adhanom Ghebreyesus said that the team had not yet fully tested the lab leak hypothesis, so further investigation was still needed. There is an opinion that the article of Journal City Wall appearing before the upcoming WHO meeting was to heat the matter up again. But the Biden administration declined to comment on the intelligence report, saying only that all credible theories about the origins of the pandemic should be investigated by WHO and international experts. Abnormal point Shi Zhengli, the leading expert on bat coronaviruses at the WIV, said that the virus did not come out of the place where she was working. She told the WHO investigation team that all staff here were negative for COVID-19 antibodies and there were no staff changes in the corona virus research team. In February, Dutch virologist Marion Koopmans, a member of the investigation team who traveled to Wuhan, told NBC News that some WIV staff members fell ill in the fall of 2019, but she attributed it to common seasonal illnesses. “It’s normal to get sick from time to time. Nothing outstanding. Maybe 1 or 2 people. It’s not a big deal,” Koopmans said. Beijing even suggested that the virus could have originated outside of China, including a laboratory at the Fort Detrick military facility in the US state of Maryland, and then called on WHO to investigate the first COVID-19 outbreaks. in other countries. But most scientists see no evidence to support the idea the virus originated in a US military lab, and the White House says there is no credible reason to investigate the facility. . It is normal for Chinese people to go to the hospital for medical examination and treatment when they are sick, because family doctor services are not yet common. COVID-19 and seasonal flu, although two different illnesses, share many of the same symptoms, such as fever, cough, and aches and pains. However, it is worth noting that members of the same corona virus research team were sick and had to be hospitalized with similar symptoms, before the disease was detected. David Asher, a former US official who led the State Department task force to investigate the origins of the COVID-19 pandemic under Secretary of State Mike Pompeo, told a Hudson Institute panel in March that he suspects suspected that the WIV researchers were sick at the same time from the common seasonal flu. “I highly doubt that three people with good protective clothing working in a third-degree lab caught the flu and were hospitalized with severe symptoms in the same week that had nothing to do with the coronavirus,” he said. Asher said, these three people could be the “first known COVID-19 outbreak”.

The COVID-19 pandemic first broke out in Wuhan city, Hubei province, China. Photo: Getty Images The United States and several countries are closer than ever to defeating COVID-19 thanks to progress in vaccination against the SARS-CoV-2 virus. But the world still does not know how this deadly virus appeared, and there is a growing opinion from the scientific community that it does not happen naturally. The US is stepping up calls for more research and warning about the risks of future pandemics. Washington is also more open to weighing the theory that a mistake or failure in a Chinese laboratory caused the COVID-19 pandemic. Meanwhile, the Chinese Government completely rejected this hypothesis and said that the dossier to trace the origin of the COVID-19 epidemic was closed. What’s new? According to CNN, a recent US intelligence report found that several researchers at the Wuhan Institute of Virology fell ill in November 2019 and were hospitalized – a new detail on the severity of the symptoms. disease in these scientists. It is not clear whether the researchers at that time had COVID-19 but the Wuhan Institute of Virology (WIV) vehemently rejected the report, considering it a lie to promote the hypothesis that the virus leaked from the laboratory. . Scientists who worked for the WIV previously said the institute had nothing to do with COVID-19 disease until December 30, 2021. On May 24, China’s Ministry of Foreign Affairs also denied the information that three Wuhan researchers were hospitalized before the outbreak of COVID-19 and affirmed that this information was “completely untrue”. Spokesperson Zhao Lijian confirmed that the Wuhan Institute of Virology was not exposed to the SARS-CoV-2 virus before December 30, 2019, and its staff so far have not been infected. Scientists at the Wuhan Institute of Virology. Photo: AFP Meanwhile, on May 25, speaking at the US Congress, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said that the failure to fund previous research on Corona virus in bats in China. Quoc is a “negligence of duty”. According to Fauci, the US should have pursued to the place where the contact between animals and humans could lead to the spread of the virus between species. Dr. Fauci himself, the leading infectious disease expert in the US, said this week he did not believe the COVID-19 outbreak occurred spontaneously and prompted further investigation. A World Health Organization (WHO) adviser, Jamie Metzl, also said the leak hypothesis is possible, while scientists are “groping, creating and studying” the virus with the aim of vaccine development. “So I believe what could have happened was a leak, followed by a cover-up,” said Metzl, who served at the US State Department and the Atlantic Council during the US presidency. President Bill Clinton said. The conclusion is that further investigation is needed An in-depth study conducted by WHO in collaboration with the Government of China, published in March, explored the different possible origins of the COVID-19 epidemic and came to the conclusion that: although still It is not yet known how the disease originated, but it is likely that it spread to humans, either directly from bats, or more likely from an intermediate species that caught the virus from bats and then spread to humans. for human. Bats can be an intermediary that spreads the SARS-CoV-2 virus to humans. Photo: NPR The WHO report called the laboratory leak theory “extremely unlikely”, citing the fact that no laboratory staff in Wuhan were infected before December 2020 as an argument against this hypothesis. After the WHO report was published, its officials still called for an additional and public investigation from the Chinese side. Meanwhile, a newly released US intelligence report shows that laboratory workers of the Wuhan Institute of Virology have been sick since before December. According to WHO adviser Jamie Metzl, in the early stages of the outbreak of the disease. when China did not warn the world appropriately, Chinese officials blamed the transmission on an initial hotspot, a seafood market in Wuhan, which at this point was essentially Is not right. This expert said that there is a lot of evidence that the Chinese government initially tried to cover up the existence of the SARS-CoV-2 virus. “Whatever the origin of the pandemic, the first month, when China was spending all its energy trying to cover things up rather than fixing the problem, allowed the fire in the furnace to cause a fire in the kitchen.” into a house fire and a worldwide fire,” said Metzl. The Wuhan Institute of Virology became the center of doubts about the origin of the SARS-CoV-2 virus. Photo: Getty Images A group of well-known and experienced scientists also criticized the WHO report for not taking seriously the hypothesis that the virus leaked from the laboratory. According to them, this hypothesis was refuted within just a few pages of a hundred-page report published by WHO. The scientists wrote in the journal Science: “We must seriously consider the contagion hypotheses in the wild and in the laboratory until we have enough data.” Fear of a recurrence of a pandemic These “closed doors” have also helped conspiracy theories expand. Arkansas Republican Senator Tom Cotton has promoted the idea that the SARS-CoV-2 virus was purposefully created as a biological weapon. But there’s no concrete evidence to back up that claim, and experts still say it’s unlikely. Dr. Paul Offit, an infectious disease specialist at the University of Pennsylvania’s Perelman School of Medicine, told CNN it’s unlikely the Wuhan lab manipulated the virus to make it more contagious. but “we have to find out” the truth. Dr. Offit said that the world needs to do something to prevent another pandemic. “What I know is that they [Trung Quốc] must allow this [điều tra mở về nguồn gốc dịch]“This is now the third pandemic to emerge in the past 20 years,” said Mr. Offit. First there was SARS 1, then there was MERS. I think we can assume we’re not done with this yet.”