SAN FRANCISCO (KGO) -- A surge in coronavirus cases has been reported in the Bay Area and across California as well as the country due in part to the emergence of the highly-contagious delta variant.

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 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 ...

As the delta COVID-19 variant continues to jeopardize progress against rising cases and hospitalizations around the world, the United States is shifting strategy when it comes to persuading ...

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 proportion was estimated at approximately 3% in late May. A highly contagious variant of the novel coronavirus that was initially identified in India now accounts for about 58% of all COVID-19 ...

WASHINGTON - In a press briefing Friday, the head of the WHO said the delta variant is "quickly becoming the dominant strain in many countries," and thus, the world is in a "very dangerous period" of ...

The delta variant of SARS-CoV-2, the virus that causes COVID-19, has been making headlines as it has quickly become the most prevalent strain in America. But other variants of the virus are still out ...

SYDNEY (Reuters) - Australian authorities said Victoria state would extend a COVID-19 lockdown beyond Tuesday to slow the spread of the highly infectious Delta variant, despite a slight drop in new ...