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Coronavirus pandemic
ChinaDiplomacy

Delta variant proves Covid-19 lab leak theory is ‘extremely unlikely’, says scientist

  • Evolutionary biologist slams ‘school kids’ politics over Covid-19 origins and says scientists should be ‘more circumspect’
  • Lingering questions over role of Wuhan institute should be addressed, asserts virologist

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An image from a scanning electron microscope shows coronavirus particles in green on an infected human cell. Photo: EPA-EFE
Linda Lew

Childish squabbles over the origins of Covid-19 are distracting the public and researchers from more urgent work, a scientist said, as a peer called for answers to lingering questions about the virus research carried out at a laboratory at the centre of the controversy.

The theory that scientists at the Wuhan Institute of Virology engineered Sars-CoV-2, the virus that causes Covid-19, was very unlikely, Wu Chung-I, an evolutionary biologist who has spent most of his career at the University of Chicago, told an online seminar hosted by Beijing-based think tank the Global Governance Institute.
For months, China and the US have traded barbs on the issue, accusing each other of politicising the investigation into its origins and pushing theories that the virus may have escaped from a laboratory in the other country.

“For us to spend so much time and energy on this low probability event, we look like a bunch of school kids fighting in the playground. We’re not trying to solve anything … It’s a complete waste of time,” Wu said at the seminar on Wednesday.

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The example of the Delta variant, which is spreading globally and has undergone multiple mutations on the basis of the wild strain of Covid-19, shows it is highly unlikely that researchers could just tinker with the virus to add a few mutations and expect it to become super efficient at infecting the human population, Wu argued.

02:34

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“The virus has to go through a very long process to become extremely well-adapted to human conditions,” he said.

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“It’s inconceivable either through lab synthesis or through taking a virus from nature, from any animal, and releasing it into the human population and expecting it to burn through the population. I consider it extremely unlikely.

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