Early in the beginning of the COVID-19 pandemic, scientists predicted the SARS-CoV-2 virus would mutate slowly. They were wrong. Hundreds of thousands of viral mutations and multiple seasonal waves later, we now know why. The answer changes researchers' understanding of viral evolution — and it could help predict the evolution of other viruses in the future. Emily talks about it all with Sarah Zhang, a health writer for The Atlantic.

Want to hear more virology or human biology stories? Let us know by emailing [email protected].

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy