As the omicron coronavirus variant spreads in southern Africa and pops up in countries all around the world, scientists are anxiously watching a battle play out that could determine the future of the ...

ATLANTA, Ga. — The delta variant that’s now the dominant strain of coronavirus in the U.S. appears to be as transmissible as chickenpox, according to an internal document from the Centers for Disease ...

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 delta coronavirus strain is seen in this electron microscope photo provided by Japan's National Institute of Infectious Diseases. TOKYO -- Coronavirus infection numbers are exploding, and severe ...

A certain mutation in the COVID-19 Delta variant causes infected cells to form disruptive chunks in the lungs and leads to more serious symptoms of the disease, a research team said. If the cells in ...

Gravediggers wearing personal protective equipment (PPE) burry a coffin at a Muslim burial area provided by the government for coronavirus disease (COVID-19) victims, as cases surge in Jakarta, ...

"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 ...

BANGKOK/TOKYO -- Coronavirus outbreaks across Southeast Asia fueled by the delta variant are squeezing business activities in the region and disrupting global supply chains.

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 ...

Two doses of Pfizer or AstraZeneca's COVID-19 vaccine are nearly as effective against the highly transmissible delta coronavirus variant as they are against the previously dominant alpha variant, a ...