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," ...

A highly infectious variant of COVID-19 that has spread around the world since it was first discovered in Britain late last ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

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 ...

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.

U.S. health officials are on high alert and looking for any cases of the new omicron variant. Questions are also being raised if this new variant will overtake delta. Dr. Otto Yang, a leading ...

CHICAGO (WLS) -- Work being done inside a UIC lab will hopefully lead to more information about various strains of COVID-19, including the Delta variant. "What we want to know is how fast these ...

A new study finds that the Omicron variant is less likely to cause long COVID than the Delta variant. The Omicron variant is less likely to cause long COVID than the Delta variant, new research has ...

Reported COVID-19 cases in the U.S. are no longer dropping and began to plateau around June 8, according to CDC data. 1. The U.S. vaccination campaign has slowed, and nearly a third of Americans are ...