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There s still no evidence of a Chinese lab leak. But here’s what s changed, scientists say. Denise Chow © Provided by NBC News
Alina Chan isn t saying the coronavirus definitely leaked from a lab in China. What she is saying is what more scientists have grown comfortable discussing publicly: There s no clear evidence either way. I know a lot of people want to have a smoking gun, said Chan, a postdoctoral associate at the Broad Institute of MIT and Harvard University who specializes in genetic engineering and has been vocal about the need to investigate the possibility of a lab leak. It s more like breadcrumbs everywhere, and they re not always leading in one direction. It s like the whole floor is covered in breadcrumbs.
The science around the lab leak theory hasn t changed But here s why some scientists have
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Nature-based or lab leak? Unraveling the debate over the origins of COVID-19
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