The delta variant has emerged as the dominant strain of the novel coronavirus in the United States, according to updated data from the Centers for Disease Control and Prevention (CDC). The CDC’s ...

Add Yahoo as a preferred source to see more of our stories on Google. A person purchases medicine at a Walgreen pharmacy counter. San Francisco Bay Area officials say COVID activity remains low, even ...

BAKERSFIELD, Calif. (KERO) — A new COVID-19 variant known as “Cicada” has been detected in California, prompting renewed attention from health officials, who say the strain does not appear to cause ...

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 Delta variant is expected to eclipse the Alpha variant in the next couple weeks, which worries health officials, said Rochelle Walensky, director of the Centers for Disease Control and Prevention.

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 ...

(NEXSTAR) – A COVID-19 variant with a catchy nickname is causing concern, despite making up a small fraction of current cases. The BA.3.2 variant was first detected in South Africa in late 2024 before ...

SACRAMENTO, Calif. (AP) — California will end its indoor masking requirement for vaccinated people next week but masks still are the rule for schoolchildren, state health officials announced ...

The 13th COVID-19 wave has likely crested, but the US heads toward winter with the low short-term immunity of 2021-22, a highly divergent variant circulating, falling vaccination and a government ...