San Francisco resident ID as the first known case of an omicron variant in the United States

The UCSF lab analyzing positive coronavirus test results is a big reason behind the rapid identification of the Omicron variant in California, First documented case in the United States of America.

The lab run by Dr. Charles Chiu, an infectious disease specialist at the University of California, San Francisco, routinely analyzes positive coronavirus cases in San Francisco for genetic sequencing to identify a variant.

Chiu said he first heard about the positive case at 3 p.m. on Tuesday. The moderately ill San Francisco resident, who returned home on November 22 from a trip to South Africa, developed symptoms on or near Thanksgiving and took a coronavirus test on Sunday, and on Monday, results came back positive from another lab.

Qiu’s lab received a sample of the detected coronavirus by 8 p.m. Tuesday. Scientists conducted a rapid molecular test, which yielded results within two hours that were suggestive, but not conclusive, that the coronavirus that infected the resident was Variable Omicron.

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