What's the concern with COVID-19 variants?

Currently, three new variants of the virus (SARS-CoV-2) that causes coronavirus disease 2019 (COVID-19) are creating concern. They include: A variant identified in the U.K. This COVID-19 variant (B.1.1.7) has 23 mutations. Several of these mutations are in the spikelike S protein that the virus uses to attach itself to the surface of human cells. Early research suggests [...]
Source: News from Mayo Clinic - Category: Databases & Libraries Source Type: news