New SARS-CoV-2 variant strains continue to emerge as the virus spreads globally. Here is a breakdown of omicron sublineages and recombinant strains that have made headlines in recent weeks and months.

Since the outbreak of the coronavirus pandemic in early 2020, a number of different variants of SARS-CoV-2 have emerged as the virus continues to mutate. In mid-2021, the delta variant spread rapidly ...

Since omicron first appeared in the U.S. nearly a year ago, the variant has maintained dominance, splintering into an increasingly complicated patchwork of sublineages. The original omicron variant ...