Where did COVID-19 come from? – USA TODAY
The coronavirus that conquered the world came from a thumb-sized bat tucked inside a remote Chinese cave. Of this much, scientists are convinced.
Exactly how and when it fled the bat to begin its devastating flight across the globe remain open questions.
In just one year, SARS-CoV-2, the virus that causes COVID-19, has infected 100 million people and killed 2 million, 400,000 of them in the U.S. Answers could stop such a calamity from happening again.
Researchers in China, under government scrutiny, have…