NEW YORK (WABC) -- New York City's latest COVID positivity rate is still low at 1.17 percent. Marriage bureaus in the city are opening on Monday for in-person weddings. However, there was a warning on ...

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 ...

WASHINGTON -- As the country grapples with a surge in the delta variant of the COVID-19 coronavirus, Dr. Anthony Fauci believes that lockdowns the country saw last year are likely to not return, ...

SAN FRANCISCO (KGO) -- The Centers for Disease Control and Prevention (CDC) released new data Friday indicating the Delta variant is twice as infectious as previously thought, and a recent analysis ...

Vaccine effectiveness against COVID-19 infection dropped from 91% to 66% once the delta variant accounted for the majority of circulating virus, according to a study published Tuesday by the U.S.

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the ...

Moderna on Tuesday released preliminary data indicating its vaccine is likely to hold up against several variants of concern, including the Delta variant, which is predicted to become the dominant ...