First Confirmed US Case of Omicron Coronavirus Plague Variant Detected in California

(CNN) – The United States’ first confirmed case of the Omicron coronavirus variant has been identified in California.

In a White House news briefing, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said the case was in an individual who traveled from South Africa on November 22 and tested positive for Covid-19 on November 29.

That individual, Fauci said, is self-quarantining and close contacts have tested negative for the coronavirus so far.

The person was fully vaccinated and is experiencing “mild symptoms, which are improving at this point,” Fauci said.

Asked by CNN whether that person had a booster shot, Fauci said, “To my knowledge, no.”

The California and San Francisco Departments of Public Health and the US Centers for Disease Control and Prevention confirmed that the case was caused by the Omicron variant through genomic sequencing conducted at the University of California at San Francisco, and confirmed with the CDC, Fauci said.

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Source: CNN