The variant is described as far more contagious than earlier variants of the coronavirus, but not necessarily more deadly or likely to make an infected person more sick. It has also been confirmed in Colorado.
San Diego County officials say the variant was detected in a 30-year-old man. They believe there are likely to be other cases in their area because the man did not have a history of recent travel.
In Los Angeles County, public health director Dr. Barbara Ferrer said county labs did genome testing on 26 samples, but did not find the variant in the county. But she said, given the small sample size and the highly-transmissible nature of the variant, she would not be surprised if it is circulating already in Los Angeles.
Newsom said he learned the new variant was in California Wednesday morning.
He made the disclosure during a virtual conversation with Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases.
Fauci said he wasn't surprised and said it is likely to make its way to other states as well.
"I don't think that Californians should feel this is something odd," Fauci said. "This is something that's expected."
Fauci says current vaccines appear to be equally effective at providing protection against the new variant. He added that people who get infected once by it do not appear to get reinfected, meaning the body's natural immunity is equally effective against the new variant as the older variants.
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