
5 Things We Know About the COVID-19 Variants
Viruses are constantly changing, and new versions—called variants—often arise. News of variants of the coronavirus disease 2019 (COVID-19) virus is spreading nearly as fast as the variants themselves. To learn more about these variants, we talked to Dirk Dittmer, PhD, professor of microbiology and immunology at UNC School of Medicine. 1. When it comes to viruses,…