"[Redfield] offered no explanation for this idea other than to say as a virologist, he does not believe the virus could have been so contagious when it jumped directly from an animal to a person. Instead, he contends it was manipulated in a Wuhan research laboratory to become more contagious and then accidently released by a worker in September or October 2019, a few months before coming to public attention.
Several scientists said Redfield's theory did not pass the scientific smell test.
"There's a fundamental difference between having a theory and testing a theory and showing evidence that your theory is a fact," said Paul Duprex, a virologist and director of the center for vaccine research at the University of Pittsburgh.
Duprex, who runs a biosafety level three lab, which handles dangerous pathogens, said he would never rule out the possibility of human error.
"No open-minded scientist will ever say to you, or should say to you, 'this is impossible," he said. "What a good scientist will say is, 'Where is the evidence?'"
Duprex said he has seen no evidence to suggest the virus first emerged from a lab.
https://www.msn.com/en-us/news/us/f...b-in-china-scientists-are-dubious/ar-BB1f0EWi