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

New research reveals long COVID symptoms are not isolated but overlap and vary among individuals. Fatigue is the most common ...

BETHESDA, Md. - Scientists at the National Institutes of Health said they have gained new insight into the coronavirus alpha and delta variants, possibly explaining why the mutations are 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 ...

A large global review outlines recurring long COVID symptom clusters, including fatigue, neurological issues, respiratory ...

With each new COVID-19 variant, the interval between exposure and symptom development appeared to shorten, according to a study published Aug. 22 in JAMA Network Open. COVID-19 is known to have a ...

The delta variant of SARS-CoV-2, the virus that causes COVID-19, has been making headlines as it has quickly become the most prevalent strain in America. But other variants of the virus are still out ...

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 ...