The delta variant is by far the dominant strain of the coronavirus in North Carolina and the rest of the country, but experts say there are also other variants to watch. Before delta, there was alpha, ...

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 ...

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 ...

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 ...

(WPIX) – At least two new COVID-19 variants have hit the United States, and they could be worse than the delta variant in their infectiousness and ability to stand up to vaccines, according to a top ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

The World Health Organization has added the "mu" strain to its list of COVID-19 "variants of interest." The strain, also know as B.1.621, was first documented in Colombia in January 2021 but didn’t ...