Updated Mar. 15, 2022
The omicron variant of COVID-19 has become the dominant strain of the virus circulating in the U.S. and the rest of the world. It’s more easily spread than previous strains because it has more mutations than any other variant so far. Many of the mutations are in the spike protein, which relates to how the virus is spread.
If you’ve been exposed to someone with the virus or have COVID-19 symptoms and are waiting for a test or your results, stay home and isolate from others.