Covid lab leak theory cannot be ruled out, leading scientists say
"More investigation is still needed to determine the origin of the pandemic," a group of leading scientists said. "Theories of accidental release from a lab and zoonotic spillover both remain viable," the scientists said in a letter to the journal Science.
By May 14, 2021 at 12:42PM
By May 14, 2021 at 12:42PM
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