COVID-19 cases are rising in half of U.S. states. What to know about COVID trends and the new Stratus and Nimbus variants.

SAN FRANCISCO (KGO) -- There is an increase in positive COVID-19 cases across the Bay Area, especially in San Francisco. UCSF's Dr. Monica Ghandi says it's because two new subvariants have come up ...

COVID-19 cases in California show a potential summer surge, with wastewater data indicating increased virus levels.

A significant COVID-19 surge is sweeping across 25 US states, driven by waning immunity and new variants like NB.1.8.1 (Nimbus). The CDC reports risin ...

A summer wave of Covid-19 is hitting parts of the US, driven by the Nimbus variant. Here's what to know about symptoms, its spread, and how to stay safe.

Infections of COVID-19 are growing or likely growing in half of the U.S. as of July 8, according to CDC estimates.

According to a Johns Hopkins report, several virological, behavioural, and environmental factors drive summer Covid-19 waves.

Infections of COVID-19 are growing or likely growing in half of the U.S. as of July 8, according to CDC estimates.

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

'The summer surge is real': President Biden has COVID, as experts say cases are on the rise across the US, including in Pa.