[https://edition.cnn.com/2021/01/06/health/mutations-coronavirus-vaccine-evade/index.html](https://edition.cnn.com/2021/01/06/health/mutations-coronavirus-vaccine-evade/index.html) >"Scientists worry that mutated variants of coronavirus might evade the protection provied by vaccines. Here's how that might happen - and why some experts think it's not a major risk."