Tracing the biological origins of the viruses that cause SARS, MERS, and COVID-19

What is a coronavirus? - Elizabeth Cox · 5:16 · Video: TED-Ed · Watch at the source

In short: Elizabeth Cox explores the fundamental science of coronaviruses, examining how these pathogens function and the decade-long scientific search to identify their natural reservoirs.

The video details the mechanisms of coronaviruses and their ability to trigger severe respiratory diseases. A key focus is the hunt for the source of the 2003 SARS epidemic, which led scientists through isolated caverns and China's highest mountains. After nearly ten years of investigation, the source was identified within the bats of Shitou Cave.

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