Coronavirus variants, viral mutation and COVID-19 vaccines: The science you need to understand
- Written by Richard Kuhn, Professor of Biological Sciences, Purdue University

The SARS-CoV-2 virus mutates fast. That’s a concern because these more transmissible variants of SARS-CoV-2 are now present in the U.S., U.K. and South Africa and other countries, and many people are wondering whether the current vaccines will protect the recipients from...