The WHO chief says 'lab-leak' theory cannot be ruled out – is he right?

Two of Australia's biggest scientific names insist the evidence, despite the media's excitement, is lacking

The WHO seems to be shifting again on the lab-leak theory for SARS-CoV-2.

Dr Tedros Ghebreyesus
Dr Tedros Ghebreyesus. Photo: AAP

Back in March, it released findings from its international investigation into the origins of the virus that described the lab-leak hypothesis as extremely unlikely, although stressed that the issue remained a “work in progress”.

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