ATLANTA - EXCLUSIVE: The Centers for Disease Control and Prevention on Tuesday will announce that the delta strain of COVID-19 is a "variant of concern" in the U.S., but that two doses of the Pfizer ...

ATLANTA, Ga. — The delta variant that’s now the dominant strain of coronavirus in the U.S. appears to be as transmissible as chickenpox, according to an internal document from the Centers for Disease ...

A growing number of public-health experts are urging the Centers for Disease Control and Prevention to recommend that even fully vaccinated people wear face masks in public amid the resurgence of ...

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 ...

As the delta variant continues to spread in countries around the world, some COVID-19 safety restrictions have been reinstated in efforts to curb the rising cases. But the director of the U.S. Centers ...

CHICAGO (WLS) -- Work being done inside a UIC lab will hopefully lead to more information about various strains of COVID-19, including the Delta variant. "What we want to know is how fast these ...

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 ...