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 ...

RALEIGH, N.C. (WTVD) -- North Carolina, like many other states across the country, is seeing an uptick in COVID-19 cases. 5:45 p.m. Angelene Mcrae has oxygen tanks and other pieces of equipment that ...

The CDC says 83% of all new COVID-19 cases in the U.S. can be attributed to the Delta variant. CBS News' Skyler Henry has more on the sharp increase in cases across the country. Then Dr. Amesh Adalja, ...

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 ...

As the highly contagious Delta variant of COVID-19 continues to surge in populations with low vaccination rates, doctors are looking more closely at the origins of another variant. The Epsilon variant ...

Since SARS-CoV-2 first emerged in late 2019 the virus has spawned dozens of lineages, a handful of global "variants of ...