1st omicron case in US found in San Francisco

A person in California became the first in the U.S. to have an identified case of the COVID-19 omicron variant, the White House announced Wednesday as scientists continue to study the risks posed by the new strain of the virus.

COVID booster shots on many people's holiday wish list

Bay Area county health officers say COVID vaccines supplies are plentiful, but they are urging people to make appointments and be patient as demand for vaccine shots and boosters is rising.

UCSF virologist says it's urgent to collect data on omicron variant

New research shows the COVID-19 omicron variant has 50 mutations, including some known to allow the virus to bind to human cells more tightly and cause high transmission. A UCSF virologist says this is one of the reasons for the urgency to collect data.

WHO says omicron variant poses 'very high risk'

The U.N. health agency, in a technical paper issued to member states, said "considerable uncertainties” remain about the variant that was first detected days ago in southern Africa.

California health officials on watch for omicron variant

"California is closely monitoring the new omicron variant, which has not yet arrived in California or the U.S.," Dr. Tomas Aragon, director of the California Department of Public Health said Sunday.

New COVID-19 variant prompts travel restrictions

Health officials are sounding the alarm about a new COVID-19 variant identified in South Africa this week. Experts worry that the rapidly spreading Omicron variant could be even more contagious than Delta.