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 ...

Many of us have heard about the different variants of the SARS-CoV-2 virus that was reported for the first time in Wuhan, China, in December 2019 and has spread throughout the world, among them the ...

(NEXSTAR) — The latest surge in COVID-19 infections is fueled by the highly contagious delta variant first identified in India late last year. Now, a variation of that variant is beginning to generate ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

PHILADELPHIA (WPVI) -- When comparing omicron vs. delta variants, omicron has 53% less risk of hospitalization and 91% less risk of death, CDC Director Dr. Rochelle Walensky revealed on Wednesday.

A COVID-19 variant that appears to be a mixture of both Delta and Omicron has been found in several countries, including the U.S. At the moment, it's not clear what sort of characteristics this ...

NEW YORK (WABC) -- Encouraging new data suggests the omicron variant, while highly contagious, is less severe than the delta variant. The variant has now been found in 21 states, as the U.S. continues ...