Five years ago, the COVID-19 pandemic was beginning, and we didn’t know it yet. So what exactly happened? Many scientists believe the infection started in late 2019 from infected animals at a market in Wuhan, China, but there is still debate.
It is clear that SARS-CoV-2 evolved from bat viruses, as many related viruses have been found in bats. One of the closest ones is a strain called BANAL-20-236…