Since the CDC limits data reporting on breakthrough COVID-19 infections — those occurring among fully vaccinated people — to those that cause severe disease, mild or asymptomatic infections caused by ...

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 ...

"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 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 ...

On Tuesday, the U.S. Centers for Disease Control and Prevention updated its guidance to recommend that fully vaccinated people again wear face masks indoors if they are in an area where the novel ...

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 ...

The Delta Plus variant, found in dozens of countries, is the Delta variant with an extra mutation. It's not yet clear whether Delta Plus is more transmissible than Delta. The fact Delta remains ...

A new preprint study suggests that Moderna’s COVID-19 vaccine may be significantly more effective against symptomatic disease from the delta variant compared to Pfizer-BioNTech’s vaccine, while the ...

For a moment in late spring and early summer, it seemed that restaurant operators were starting to see the light at the end of the tunnel. The Covid-19 vaccines were publicly available, and more ...

Just as companies are preparing to bring remote employees back to their offices or institute a “hybrid” arrangement (a mix of remote and in-the-office work), a once-again spiking infection rate due to ...

Part of the problem is low vaccination rates, experts said. The Centers for Disease Control and Prevention assigned two federal "surge team" members to Missouri this week to help fight the state's ...