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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).
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 Omicron variant features as such for the first time in the overview of WHO's weekly operational update, namely "Supporting Omicron variant detection and COVID-19 response in southern Africa." As of 2 December, Botswana and South Africa have reported 19 and 172 Omicron variant cases, respectively, accounting for 62% of global cases.
LB.1 is the third-leading COVID-19 variant in the U.S. right now, trailing close behind the dominant KP.3 and KP.2, according to the latest data from the U.S. Centers for Disease Control and ...
What are the FLiRT COVID-19 variants? KP.2 and KP.1.1 are spinoffs of the omicron subvariant JN.1.11.1, which is a direct descendant of JN.1, the dominant strain for most of the winter, TODAY.com ...
HV.1 is a sublineage of omicron XBB.1.9.2 and a direct descendent of EG.5, according to the CDC's SARS-CoV-2 lineage tree. “The COVID family of viruses likes to mutate. We’ve all learned that ...
The Delta variant (B.1.617.2) was [3] [4] a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India on 5 October 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The World Health Organization (WHO) indicated in June 2021 that the Delta variant was becoming ...
COVID-19 pandemic. The Alpha variant (B.1.1.7) was [2] [3] a SARS-CoV-2 variant of concern. It was estimated to be 40–80% more transmissible than the wild-type SARS-CoV-2 (with most estimates occupying the middle to higher end of this range). Scientists more widely took note of this variant in early December 2020, when a phylogenetic tree ...