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 ...

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 ...

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

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 ...

"It's the biggest experiment that's ever happened." In a stunningly short period of time, the delta variant has changed the course of the COVID-19 pandemic by evolving to become more transmissible ...

RALEIGH, N.C. (WTVD) -- As new variants of SARS-CoV-2 emerge, a new study is giving insight into how COVID-19 surveillance programs can be used to design more effective annual vaccine boosters. "Now ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

The cases of the Mu variant have also been reported in the UK, Europe, the US and Hong Kong. The new 'variant of interest' is ...

Estimates show the variant accounts for over 51% of all new cases nationwide. A highly contagious variant of the novel coronavirus that was initially identified in India is now the dominant strain in ...