There's growing scientific evidence that the novel coronavirus COVID-19 is most closely related to other coronaviruses found in bats.
This week, a study revealed a previously unknown coronavirus named RmYN02 that's 97.1% similar to COVID-19.
It was found in the bats in China's Yunnan province between May and October 2019.
According to Business Insider, this isn't the first instance of a cross-species spillover event.
