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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]
On 26 November at an emergency meeting in Geneva, Switzerland WHO's Technical Advisory Group on SARS-CoV-2 Virus Evolution designated PANGO lineage B.1.1.529 a variant of concern (VOC) and gave it the designation Omicron (skipping Nu and Xi, the next letters in the Greek alphabet in keeping with its nomenclature protocol introduced for the Delta variant).
BA.2.86 is an Omicron subvariant of SARS-CoV-2, the virus that causes COVID-19. BA.2.86 is notable for having more than thirty mutations on its spike protein relative to BA.2. [ 1] The subvariant, which was first detected in a sample from 24 July 2023, [ 2] is of concern due to it having made an evolutionary jump on par with the evolutionary ...
Moderna has a new COVID-19 booster vaccine that targets Omicron and protects against both the original virus and Omicron strains. It was just authorized by officials in the U.K.
But BA.2.12.1, along with another version of omicron, called BA.2.12, is said to be responsible for the recent spike in COVID cases seen in upstate New York, the State Department of Health said ...
Variants of severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2) are viruses that, while similar to the original, have genetic changes that are of enough significance to lead virologists to label them separately. SARS-CoV-2 is the virus that causes coronavirus disease 2019 (COVID-19).
The January 2022 emergence of the Omicron variant, which was first discovered in South Africa, led to record highs in hospitalizations and cases in early 2022, with as many as 1.5 million new infections reported in a single day. [27] By the end of 2022, an estimated 77.5% of Americans had had COVID-19 at least once, according to the CDC. [28]
New York administered the vaccine first to health-care workers, and then to nursing-home residents starting December 21. [94] A video of 50 members and maskless dancers at a Republican Club party in Queens became widely publicized on December 21. At the time, gatherings of more than ten people were prohibited. [95]