Three years after the World Health Organization declared COVID-19 a pandemic on March 11, 2020, questions linger about the origins of the virus that shut down borders, forced humanity into their homes, battered economies and killed millions of people.
The virus was first detected in Wuhan, China in late December 2019, and was quickly linked to the Huanan Seafood Wholesale Market. But as cases began to grow, health authorities in Wuhan scrubbed the market clean by January 1, 2020.
