Viruses mutate constantly, though not always in dangerous ways. But we need to keep vaccinating and stay vigilant.

News about emerging coronavirus variants can sound scary to a public not accustomed to genomic jargon. But viruses undergo mutations frequently, both within infected people and as they travel from one person to another. That’s why it’s important to remember this (modified) adage: All variants are innocent until proven guilty.

Read the full article in The New York Times.