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Omicron Variant First Case Detected in the United States

The first confirmed case of the Omicron coronavirus strain in the United States has been discovered in California. Dr. Anthony Fauci, head of the National Institute of Allergy and Infectious Diseases, said in a White House news briefing that the case involved a person who flew from South Africa on November 22 — before travel restrictions were in place — and tested positive for Covid-19 on November 29. That person is self-quarantining, according to Fauci, and close contacts have tested negative for the coronavirus so far.

The person has been properly vaccinated and is suffering from “minor symptoms that are improving at this time,” according to Fauci. The person had not received a booster shot, according to Dr. Grant Colfax, San Francisco’s director of public health. Through genome sequencing undertaken at the University of California at San Francisco, the California and San Francisco public health agencies determined that the case was caused by the Omicron variation, and the sequence was confirmed by the US Centers for Disease Control and Prevention.

According to Color Health, the positive test result was obtained through the San Francisco Covid-19 testing programme, and Omicron was detected in less than 30 hours from the time of collection to strain confirmation. Omicron is classified as a variation of concern by the World Health Organization. WHO said the strain poses a very high worldwide risk in a technical brief released this week. Scientists in South Africa were the first to discover the variety, and it has now been discovered in a number of other nations.

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