What Are Virus Variants?

Dive Deeper

vaccines on a conveyor belt
These Vaccines Will Take Aim at Covid—and Its Entire SARS Lineage
Letters of the Greek alphabet
Why Can't We Just Call BA.2 Omicron?
SARS-CoV-2 artist's representation in lime green, fuschia, white, and yellow
COVID Variants May Arise in People with Compromised Immune Systems