One Tiny Mutation. One Potential Pandemic. Here's What…

One Tiny Mutation. One Potential Pandemic. Here's What Scientists Just Found. COVID-19 changed the world. And most of us still don't fully understand how a virus in a bat became a global catastrophe.New research from UCSF and collaborators published in Cell Host & Microbe brings us closer to that answer and what they found is both fascinating and sobering. The discovery in simple terms: Scientists compared SARS-CoV-2 with RaTG13, a closely related coronavirus found in bats that has never infected humans. The two viruses are nearly identical. But one tiny differ