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 ...

A warning has been issued over the new deadly variant of Covid has been issued. Dubbed XFG, the variant has taken over in countries such as India, with several deaths reported. And now medical experts ...

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 ...