Why Covid-19’s Origin Story Is Still a Mystery

Inside the puzzle to reconstruct the history of SARS-CoV-2 and how it spilled over into humans

Mariana Lenharo
Elemental

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Illustration: Bernice Liu

As the Covid-19 pandemic disrupts the lives of billions around the world, two questions continue to linger: Where did the virus come from, and how did it find its way into humans?

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Mariana Lenharo
Elemental

Science and health journalist with a special interest in evidence-based medicine and epidemics. Columbia Journalism School alumna. mari.lenharo@gmail.com.