At first, researcher Kristian Andersen believed that COVID-19 most likely originated from a lab leak. But he changed his mind upon greater investigation, and is now certain the Huanan market in Wuhan, China, was the epicenter. Andy unravels the mystery with Andersen using new key information about what happened, which animals could have transmitted it to humans, and how to make wet markets and factory farming safer in order to prevent the next pandemic.

Keep up with Andy on Twitter @ASlavitt.

Follow Kristian Andersen on Twitter @K_G_Andersen.

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Check out these resources from today’s episode: 

• Read these two preprints that provide the strongest evidence yet that the COVID-19 pandemic began at a market selling live animals in Wuhan: https://zenodo.org/record/6299600#.YyCykOzMKWA and https://zenodo.org/record/6291628#.YyCyj-zMKWA
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• Order Andy’s book, “Preventable: The Inside Story of How Leadership Failures, Politics, and Selfishness Doomed the U.S. Coronavirus Response”: https://us.macmillan.com/books/9781250770165 

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