The delta variant is fueling the COVID-19 surge in the United States, but experts warn that a more dangerous variant could emerge if more Americans don't get vaccinated. Delta is the most recent of ...

The delta variant is by far the dominant strain of the coronavirus in North Carolina and the rest of the country, but experts say there are also other variants to watch. Before delta, there was alpha, ...

(WPIX) – At least two new COVID-19 variants have hit the United States, and they could be worse than the delta variant in their infectiousness and ability to stand up to vaccines, according to a top ...

(NewsNation Now) — The World Health Organization has identified another coronavirus variant of interest, calling it the mu variant, saying it may have the ability to evade vaccine protections. The B.1 ...

The World Health Organization has added the "mu" strain to its list of COVID-19 "variants of interest." The strain, also know as B.1.621, was first documented in Colombia in January 2021 but didn’t ...

While the delta COVID-19 variant is the dominant strain in the U.S., it’s now officially the dominant strain worldwide “by far,” officials from the World Health Organization said during a Sept. 21 ...