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 ...

CDC director Rochelle Walensky told the US Senate that the highly transmissible variant is now the dominant strain in the United States.

Several COVID-19 variants are acting uniquely enough to qualify as a distinct strain. And you might have heard about one on ...

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 ...

The delta coronavirus variant surging across the United States appears to cause more severe illness and spread as easily as chickenpox, according to an internal document from the US Centers for ...

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 ...

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 ...

A new COVID-19 strain, referred to as NB.1.8.1 or "Nimbus," first appeared in the U.S. sometime near the end of April and is currently the dominant variant in the U.S. The new variant is said to be ...

The proportion was estimated at approximately 3% in late May. A highly contagious variant of the novel coronavirus that was initially identified in India now accounts for about 58% of all COVID-19 ...

Long COVID is best understood as a collection of overlapping symptoms rather than a single post-viral condition, suggests a ...