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 ...

With the delta variant fueling a surge of COVID-19 cases across the country, there is growing concern for children who are not yet eligible to receive the vaccine. The American Academy of Pediatrics ...

A third dose of the Pfizer/BioNTech COVID-19 vaccine can "strongly" boost protection against the delta variant -- beyond the protection afforded by the standard two doses, suggests new data released ...

Johnson & Johnson said Thursday that new data shows that its single-shot COVID-19 vaccine provides protection against the virus for at least eight months and effectively prevents infection from ...

NEW YORK, N.Y. — Pfizer announced Wednesday that data shows a third dose of its COVID-19 vaccine can “strongly” boost protection against the highly transmissible delta variant. The pharmaceutical and ...

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 ...

SAN FRANCISCO -- Earlier in the pandemic, experts had hoped if we can get 75% of Americans vaccinated, we can contain the coronavirus. Thursday, we're at just over 50% vaccinated. But 75% is no longer ...

MARSHALLTOWN, Iowa -- As COVID cases continue to surge across the U.S. due to the Delta variant, an Iowa doctor took to social media to urge vaccinations. He started off by saying, "I feel like I ...

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 ...