As of November 30, 197.1 million people, or 60 percent of the US population, have been fully vaccinated. And 41.1 million received a booster shot, according to data from the US Centers for Disease Control and Prevention (CDC).

As Fauci spoke, California’s health officials announced in a statement that a fully vaccinated traveler who returned to the state from South Africa on November 22, was tested positive with Omicron variant. 

Fauci said the person was vaccinated but had not received a booster shot and was experiencing “mild symptoms.”

There are currently no other cases the CDC is investigating as Omicron-linked, said Fauci.