Differing strains of the coronavirus continue to appear around the world and a new COVID-19 variant, the so-called "Delta" variant, has health experts concerned. The variant, otherwise known as B.1617 ...

A preliminary study of 52,330 Israeli women found similar rates of heart attack, stroke, blood clots and early death among hormone therapy users and nonusers, though it cannot prove safety. Older ...

The fast-spreading delta variant of the coronavirus has been gaining traction worldwide since it was first detected in India. It’s a version of the coronavirus that has been found in more than 80 ...

LONDON — Since the start of the coronavirus pandemic, the U.S. has been keeping a close eye on the U.K. Stream NBC 5 for free, 24/7, wherever you are. From its initial response to Covid-19 (questioned ...

The delta variant has emerged as the dominant strain of the novel coronavirus in the United States, according to updated data from the Centers for Disease Control and Prevention (CDC). The CDC’s ...

The Delta variant is expected to eclipse the Alpha variant in the next couple weeks, which worries health officials, said Rochelle Walensky, director of the Centers for Disease Control and Prevention.

Where new cases of the Delta variant of COVID-19 came from remains a mystery - but it has been revealed two Australians had ...

The Delta variant of COVID-19 is continuing to spread rapidly in New Jersey — almost tripling in prevalence over two weeks, according to a new report released Wednesday. The highly contagious variant ...

The stock market shrugged off rising Covid-19 infections due to the Delta variant Monday. And that makes sense: Despite Covid issues, investors are feeling a little better about the outlook for ...

Protection from infection declines with each new variant, making herd immunity impossible, but they are still keeping people ...

Cases of Covid-19 have risen sharply across the UK this month, driven largely by a variant of the virus known as ‘XFG’.