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Timeline of the SARS-CoV-2 Omicron variant. This timeline of the SARS-CoV-2 Omicron variant (November 2021 – February 2022) is a dynamic list, and as such may never satisfy criteria of completeness. Some events may only be fully understood and/or discovered in retrospect. The extensive mutations of its spike proteins make for the Omicron variant.
March 7. Virginia, [ 149] Kansas, Missouri, and Washington, D.C. [ 150] announces its first cases. A new death is reported for March 7 in Washington. This brings the total confirmed U.S. deaths due to coronavirus to 19, 16 in Washington, 1 in California, and 2 in Florida.
Omicron (B.1.1.529) is a variant of SARS-CoV-2 first reported to the World Health Organization (WHO) by the Network for Genomics Surveillance in South Africa on 24 November 2021. [ 10][ 11] It was first detected in Botswana and has spread to become the predominant variant in circulation around the world. [ 12]
The new "FLiRT" COVID-19 variants, including KP.3 and KP.2, are spreading in the United States. Will there be a summer surge? Experts discuss transmission, symptoms, and vaccines.
In December, JN.1 caused a growing percentage of COVID-19 cases, an also seemed to lead to an increase in total cases, Pekosz told TODAY.com at the time. Test positivity, an early indicator of ...
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January 22. On January 22, the U.S. passed 25 million cases, with one of every 13 Americans testing positive for COVID-19. [ 24] January 24. On January 24, the Capitol Police announced that 38 police officers have tested positive for COVID-19 since the January 6 riot at the United States Capitol. [ 25] January 25.
The dizzying speed of omicron’s spread has left Americans questioning much of what they know about COVID-19, especially following holiday travel. “This is