WASHINGTON - The delta variant of the coronavirus now accounts for an estimated 83% of COVID-19 cases in the United States as it continues to surge largely among unvaccinated populations, officials ...

The more contagious Delta variant of Covid-19 now makes up 83% of sequenced samples in the United States, US Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said Tuesday.

The highly infectious Delta variant of COVID-19 has made up more than 80% of California samples sequenced for July, the same proportion top U.S. health officials have recently cited as the national ...

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 ...

Estimates show the variant accounts for over 51% of all new cases nationwide. A highly contagious variant of the novel coronavirus that was initially identified in India is now the dominant strain in ...

The coronavirus has come a long way since 2020. While the days of sanitizing Amazon packages and standing six feet apart may feel like they’re behind us (and they very well may be), the SARS-Co-V-2 ...

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 ...

"It's the biggest experiment that's ever happened." In a stunningly short period of time, the delta variant has changed the course of the COVID-19 pandemic by evolving to become more transmissible ...

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 ...