Delta deadliest among COVID-19 variants, say CCMB scientists. Five different SARS-CoV-2 variants were chosen and scientists ...

LONDON - As the highly contagious delta variant continues to spread, a new, British study shows COVID-19 vaccines are effective against the delta variant, but that their protection decreases over time ...

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 ...

Admissions amid the delta variant surge are approaching Health First’s coronavirus peak of about 110 patients a day, which Stalnaker said occurred after the Thanksgiving-Christmas-New Year’s Day ...