Variants of the Virus that Causes COVID-19
Viruses constantly change through mutation, and new variants of a virus are expected to occur over time. Sometimes new variants emerge and disappear. Other times, new variants emerge and persist. Multiple variants of the virus that causes COVID-19 have been documented in the United States and globally during the pandemic.
How Did COVID Mutate?
How Many COVID Mutations or Variants Are There?
(Source: Centers for Disease Control and Prevention)