Latest COVID booster now available in North Carolina for kids 5 and older
The updated COVID-19 booster is now available in North Carolina for children and teens five and older.
Coronavirus variants
Why some researchers think the omicron variant could be the most infectious one yet
Preliminary data about omicron suggests the variant became widespread across southern Africa in a very short period of time. Scientists say its many mutations may play a role in its transmissibility.
The World Health Organization warns of very high risk posed by the omicron variant
The newly identified strain of the coronavirus, which could be more transmissible than the previously dominant delta variant, has global health officials worried about a possible new surge in cases.
What to know about omicron, the new COVID variant
The World Health Organization deemed it a variant of concern, and the U.S. is banning travel from parts of Africa where it's spreading. Here's what scientists know and what they're trying to learn.
The Lambda Variant: What You Should Know And Why Experts Say Not To Panic
Cases of the variant have popped up in several states. But neither the WHO nor the CDC considers it a variant of concern, and the fast-spreading delta variant continues to dominate U.S. cases.
Fauci Warns Dangerous Delta Variant Is The Greatest Threat To U.S. COVID Efforts
More contagious than other variants, and maybe more likely to cause severe disease, Delta is spreading so fast in the U.S. it could cause another surge this summer or fall, according to new research.
Visual Explainer: Why Some Coronavirus Variants Are More Contagious Than Others
This animated video uses puzzle pieces to show how a coronavirus binds to a cell's surface — and what happens when a mutation occurs.
VIDEO: An Easy Way To Understand Coronavirus Variants — Using Puzzle Pieces
If you imagine viruses as pieces of a jigsaw puzzle, that can help explain what happens when a coronavirus variant comes into contact with human cells.
Biden Administration To Spend $1.7 Billion To Track Spread Of Coronavirus Variants
With a more contagious variant now dominant in the U.S., the country's genomic surveillance capacity is getting a major boost.
CDC Says More Virulent British Strain Of Coronavirus Now Dominant In U.S.
The variant known as B.1.1.7, which is more easily spread, was first identified in England last fall. Since then, it has spread quickly in the U.S.