NPR

Virus Researchers Cast Doubt On Theory Of Coronavirus Lab Accident

The Trump administration is investigating the theory that the virus leaked from a lab. Scientists who work with viruses say that's virtually impossible and point to transmission from an animal.
The Wuhan Institute of Virology (above) has been the focus of the lab accident theory. Scientists interviewed by NPR said that all evidence points to the pandemic not being the result of a lab accident.

Virus researchers say there is virtually no chance that the new coronavirus was released as result of a laboratory accident in China or anywhere else.

The assessment, made by more than half-a-dozen scientists familiar with lab accidents and how research on coronaviruses is conducted, casts doubt on recent claims that a mistake may have unleashed the coronavirus on the world.

The accident theory has been prominently advanced by the Trump administration in recent weeks. Earlier this month, a set of State Department cables leaked to The Washington Post pointed to U.S. safety concerns at labs in Wuhan, the city where the virus emerged. Intelligence agencies are currently assessing the possibility of an accident, and last Wednesday, President Trump promised "a very thorough examination" of events.

"I will tell you, more and more, we're hearing the story," Trump said on April 15 of the theory that the virus came from labs in Wuhan.

But after corresponding with 10 leading scientists who collect samples of viruses from animalsin the wild, study virus genomes andaccidents canhappen, NPR found that an accidental release would have required a remarkable series of coincidences and deviations from well-established experimental protocols.

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