AHA News: Where Do New Viruses Like the Coronavirus Come From?

THURSDAY, July 9, 2020 (American Heart Association News) -- Factors smaller than a cell and as large as the planet are at play when a virus leaps from an animal to a human.

The question of how that happened with SARS-CoV-2, which causes the disease COVID-19, is crucial for several reasons, said best-selling author and science journalist David Quammen. The answer could help scientists find a vaccine to end this pandemic. It could uncover ways to prevent the next.