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The former head of the US disease agency CDC, Robert Redfield, assumes that Sars-CoV-2 probably comes from a laboratory.
He takes the view that the virus most likely "escaped from a laboratory," he said in a CNN interview that aired on Friday.
“Other people don't believe that.
That's fine.
Science will find out at some point. ”Redfield emphasized that he was not assuming any intention.
He therefore assumes an accident.
On the other hand, Redfield considers the thesis that the virus jumped from animals to humans to be less likely.
"I don't think it came from a bat to a human in any way," Redfield said.
"Let's say I have coronavirus and I'm working on it - most of us in the lab are trying to make the virus grow.
We're trying to make it grow better and better and better and better so we can do experiments and find out something about it.
That's how I explain it to myself. "
Redfield's thesis is highly controversial.
The WHO considers a laboratory accident to be "extremely unlikely".
After investigations in the central Chinese metropolis of Wuhan, where infections with the new virus were first discovered in December 2019, WHO team leader Peter Ben Embarek said that the "most likely route" of transmission to humans is from bats via another animal as an intermediate host.
The virologist Redfield was director of the CDC from 2018 to 2021, which roughly corresponds to the Robert Koch Institute in Germany.
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