WHO scientists finally arrive in Wuhan to investigate origins of Covid

A team of WHO experts arrived in Wuhan today on a politically-charged mission to investigate the origins of the coronavirus – but two scientists were held up in Singapore amid fears that China will try to obstruct the probe to prevent embarrassing discoveries. 

The 13 scientists, who will be quarantined for two weeks before starting their work, were met by Chinese officials in hazmat suits after arriving from Singapore on their much-delayed trip. 

But two others were denied entry after testing positive for Covid-19 antibodies in Singapore – despite the fact that the entire team tested negative for a current infection using the gold-standard PCR test.  

Beijing has long resisted pressure for a full investigation and has touted theories that the virus might not have originated in Wuhan, but the WHO team has been allowed in after months of negotiations with Chinese authorities. 

While the team will investigate the wet market linked to an early cluster of infections, there are no plans to assess whether the virus was accidentally released from a Wuhan lab as Donald Trump and others have suggested. 

China’s Communist rulers have boasted of their success in wrestling infections down to a minimum within the country’s borders, making it the only OECD nation to enjoy economic growth in 2020.  

The US has accused China of hiding the extent of its initial outbreak, and criticised the terms under which Chinese experts did the first phase of research. 

A Chinese government spokesman said this week that the WHO visitors would ‘exchange views’ with Chinese scientists, but gave no indication whether they would be allowed to gather evidence. 

It came as China registered its first official virus death since last May, with cases at their highest level since the end of the initial outbreak.  

A Chinese official wearing a hazmat suit and goggles directs members of the WHO expert panel on their arrival at Wuhan airport on Thursday 

Members of the WHO team board a bus following their arrival at a cordoned-off section in the international arrivals area in Wuhan

Members of the WHO team board a bus following their arrival at a cordoned-off section in the international arrivals area in Wuhan 

China’s official timeline vs new evidence

Official timeline 

Dec 8, 2019 – Earliest date that China has acknowledged an infection

Dec 31 – China first reported ‘pneumonia of unknown cause’ to the World Health Organisation

Jan 1, 2020 – Wuhan seafood market closed for disinfection

Jan 11 – China reported its first death 

Jan 23 – Wuhan locked down

Jan 31 – WHO declared ‘outbreak of international concern’ as China admitted having thousands of cases

Feb 23 – Italy reports cluster of cases in first major outbreak in the West 

New evidence 

Sep 2019– Blood samples are taken in a lung cancer screening trial in Italy which later test positive for coronavirus

Oct-Dec – Rise in ‘flu and pneumonia’ cases in northern Italy which could be linked to coronavirus  

Nov – Sewage samples taken in Florianópolis, Brazil, suggest virus was present

Nov 10 – Milanese woman has a skin biopsy, producing a sample which later shows signs of the virus  

Nov 17 – Leaked documents suggest case detected in China on this date

Dec 1 – Chinese researchers report an infection on this date in a peer-reviewed study, but it has not been acknowledged by Beijing 

Dec 18 – Sewage samples taken in Milan and Turin suggest virus was circulating in the cities 

Jan 2020 – Sewage samples from Barcelona suggest virus was in the city

Scientists initially believed the virus jumped to humans at a market selling exotic animals in Wuhan, triggering the epidemic that spiralled around the world, wrecked the global economy and killed nearly two million people and counting. 

But experts now believe that the market was not been the origin of the disease, but rather the site of a super-spreader event where the outbreak was amplified.

It is widely assumed that the virus originally came from bats, but a suspected third animal that transmitted it between bats and humans remains unknown. 

Stung by allegations that it caused the pandemic, China has promoted theories that the outbreak could have started with imports of tainted seafood, a notion rejected by international scientists and agencies.  

After Australia called in April for an independent inquiry, Beijing retaliated by blocking imports of Australian beef, wine and other goods. 

Some of the WHO team were en route to China a week ago but had to turn back after Beijing announced they had not received valid visas.

The bureaucratic delay ‘raises the question if the Chinese authorities were trying to interfere,’ said Adam Kamradt-Scott, a health expert at the University of Sydney. 

Today, the team faced further delays after two scientists were held up in Singapore because of their antibody test results. 

A positive antibody test suggests that someone has had coronavirus in the past – but the entire 15-person team tested negative for a current infection.  

The WHO team have been at pains to cut the political baggage attached to their mission, saying they are not looking for ‘culprits’ and are willing to go ‘anywhere and everywhere’ to find out how the virus emerged. 

Peter Ben Embarek, the leader of the WHO mission, said the group would be ‘able to move around and meet our Chinese counterparts in person and go to the different sites that we will want to visit’. 

He warned it ‘could be a very long journey before we get a full understanding of what happened’.

‘What we would like to do with the international team and counterparts in China is to go back in the Wuhan environment, re-interview in-depth the initial cases, try to find other cases that were not detected at that time and try to see if we can push back the history of the first cases,’ Ben Embarek said in November. 

‘I don’t think we will have clear answers after this initial mission, but we will be on the way,’ Embarek added.

‘The idea is to advance a number of studies that were already designed and decided upon some months ago to get us a better understanding of what happened,’ he said.

A staff member in protective suit stands next to buses before the expected arrival of the World Health Organisation team in Wuhan today

A staff member in protective suit stands next to buses before the expected arrival of the World Health Organisation team in Wuhan today 

Passengers arriving on the flight from Singapore are processed by staff in protective clothings and directed towards a covered walkway to a separate exit

Passengers arriving on the flight from Singapore are processed by staff in protective clothings and directed towards a covered walkway to a separate exit

This map shows how numerous countries have found evidence of virus transmission well before China alerted the world

This map shows how numerous countries have found evidence of virus transmission well before China alerted the world 

Who is on the WHO team investigating the origins of the coronavirus?  

The WHO unveiled a 10-strong panel in November tasked with investigating the origins of the coronavirus, including with this month’s visit to China. 

Also known to be on the trip is Peter Ben Embarek, the team leader who has spoken publicly about the probe.

Today the WHO said that 15 people had set off for China, making it unclear who the remaining four are. The 11 scientists known to be on the panel are: 

Peter Ben Embarek – Team leader and scientist at the WHO’s Food Safety, Zoonoses and Foodborne Diseases Department 

Thea Fischer – Virologist and epidemiologist at University of Copenhagen, previously worked at Denmark’s State Serum Institute

John Watson – UK’s deputy chief medical officer from 2013 to 2017; honorary professor of epidemiology at London School of Hygiene and Tropical Medicine

Marion Koopmans – Dutch virologist who is head of the Erasmus Medical Centre department of viroscience in Rotterdam 

Dominic Dwyer – Australian microbiologist at Westmead Clinical School in Sydney who helped grow the virus for research last February 

Vladimir Dedkov – Epidemiologist at the Institute Pasteur in Russia

Hung Nguyen – Vietnamese biologist based at Kenya’s International Livestock Research Institute who specialises in food safety risks in wet markets 

Fabian Leendertz – Microbiologist at Germany’s Robert Koch Institute who researches how viruses jump between animals and humans 

Peter Daszak – British zoologist who is president of the US-based EcoHealth Alliance and has come under fire over links to the Wuhan virology lab 

 

Farag El Moubasher – Epidemiologist at Qatar’s ministry of public health who researches emerging diseases 

Ken Maeda – Director of the National Institute of Infectious Diseases in Japan  

Hung Nguyen, a Vietnamese biologist who is part of the team, said the team planned to spend two weeks interviewing people from research institutes, hospitals and the market linked to the early cluster of cases. 

‘My understanding is in fact there is no limit in accessing information we might need for the team,’ said Hung, an expert on food safety risks in wet markets. 

But according to WHO’s published agenda, there are no plans to assess whether there might have been an accidental release at the Wuhan Institute of Virology.   

One of China’s top virus research labs, the Institute built an archive of genetic information about bat coronaviruses after the early-2000s SARS outbreak.  

A ‘scientific audit’ of Institute records and safety measures would be a ‘routine activity,’ said Mark Woolhouse, an epidemiologist at the University of Edinburgh. 

The WHO previously came in for searing criticism from Trump and others over its alleged deference to China during the early weeks of the outbreak.  

Tedros met with Chinese leader Xi Jinping last January, with the WHO praising Beijing for its ‘seriousness’ and ‘transparency’. 

In September, a WHO official offered his ‘deepest congratulations’ to China’s people and health workers for bringing the crisis under control. 

Arriving today wearing face masks, the scientists were greeted by airport staff in full protective gear, complete with mask, goggles and full body suits.

The team members include virus and other experts from the United States, Australia, Germany, Japan, Britain, Russia, the Netherlands, Qatar and Vietnam. 

They will undergo a two-week quarantine as well as a throat swab test and an antibody test for Covid-19, according to state broadcaster CGTN. 

A single visit is unlikely to confirm the virus’s origins. Pinning down an outbreak’s animal reservoir is typically an exhaustive endeavor that takes years of research including taking animal samples, genetic analysis and epidemiological studies.

‘The government should be very transparent and collaborative,’ said Shin-Ru Shih, director at the Research Center for Emerging Viral Infections at Taiwan’s Chang Gung University.

Their trip comes with more than 20million people under lockdown in the north of China and one province declaring an emergency as local clusters continue to thwart Beijing’s efforts to stamp out the virus.  

China had largely brought the pandemic under control through strict lockdowns and mass testing, hailing its economic rebound as an indication of strong leadership by the Communist authorities.

The Huanan Wholesale Seafood Market in Wuhan, pictured last January, was initially thought to be the source of the outbreak - but experts now believe it may have been the site of a super-spreader event which amplified an epidemic that started elsewhere

The Huanan Wholesale Seafood Market in Wuhan, pictured last January, was initially thought to be the source of the outbreak – but experts now believe it may have been the site of a super-spreader event which amplified an epidemic that started elsewhere 

The campus of the Wuhan Institute of Virology which has come under scrutiny after the new coronavirus surfaced in the city

The campus of the Wuhan Institute of Virology which has come under scrutiny after the new coronavirus surfaced in the city

WHO chief Tedros Adhanom Ghebreyesus, pictured last January with Chinese leader Xi Jinping, has come under criticism from Donald Trump for his alleged closeness to China

WHO chief Tedros Adhanom Ghebreyesus, pictured last January with Chinese leader Xi Jinping, has come under criticism from Donald Trump for his alleged closeness to China 

China’s GDP grew by 1.8 per cent in 2020, according to the most recent OECD estimates, while the US economy shrank by 3.7 per cent, the eurozone by 7.5 per cent and the UK by 11.2 per cent. 

New figures show that China’s trade surplus with the United States widened by 7.1 per cent last year, and is 14.9 per cent higher than when Trump took office.  

But the virus remains a sporadic threat within China’s borders, and another 138 infections were reported by the National Health Commission on Thursday – the highest single-day tally since March last year.

And the officially-reported death toll rose by one for the first time since May 2020, bringing the total to 4,635.  

The news seeded alarm across China, with the hashtag ‘New virus death in Hebei’ quickly racking up 100million views on Chinese social media platform Weibo.

‘I haven’t seen the words ‘virus death’ in so long, it’s a bit shocking! I hope the epidemic can pass soon,’ one user wrote.

Beijing is anxious to stamp out local clusters ahead of next month’s Lunar New Year festival when hundreds of millions of people will be on the move across the country.  

China was the first nation to impose lockdowns because of the virus last year, but a number of other countries have found evidence that the coronavirus had already reached them in the late months of 2019.  

Italy, France, and Brazil have all found traces of the virus from before the WHO’s China office was officially alerted about the outbreak on December 31, 2019.  

The virus was first confirmed to have spread outside China in January, when a 61-year-old woman was found to be infected with it in Thailand. 

A young Chinese doctor, Li Wenliang, was subsequently reprimanded by police after trying to raise the alarm about the disease – and later died of it.  China has always denied allegations of a cover-up.  

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