SARS-CoV-2 Omicron variant - Wikipedia
WEBIn May 2022, a preprint indicated Omicron subvariants BA.4 and BA.5 could cause a large share of COVID-19 reinfections, beyond the increase of reinfections caused by the Omicron lineage, even for people who were infected by Omicron BA.1 due to increases in immune evasion, especially for the unvaccinated. …
Tracking SARS-CoV-2 variants - World Health Organization (WHO)
WEBJul 19, 2024 · Currently circulating variants of concern (VOCs) as of 15 March 2023. Note: To better reflect the current variant landscape, which is dominated by Omicron descendent lineages, WHO updated its tracking system and working definitions of VOCs and VOIs on 15 March 2023. 4 October 2023.
Cov-Lineages
WEBPango Lineages: Latest epidemiological lineages of SARS-CoV-2. cov-lineages.org. The Pango nomenclature is being used by researchers and public health agencies worldwide to track the transmission and spread of SARS-CoV-2, including variants of concern.
Take a look at SARS-CoV-2's family tree. It's full of surprises
WEBFeb 9, 2022 · Right away, scientists sequenced its genome so they could place it on the family tree. They wanted to know: Who are omicron's grandparents? Who are its cousins?
A Detailed Overview of SARS-CoV-2 Omicron: Its Sub-Variants, …
WEBJan 5, 2023 · The BA.2 lineage consists of 57 mutations, of which 31 are in the S protein, and the N-terminus is exclusively different from that of the BA.1 lineage, whereas 12 mutations are common in both the BA.1 and BA.2 lineages in the RBD region, which are G339D, K417N, S373P, S375F, T478K, N440K, S477N, E484A, Q498R, N501Y, Q493R, and Y505H (Figure 4 B ...
Why call it BA.2.12.1? A guide to the tangled Omicron family
WEBMay 27, 2022 · For example, BA.1, BA.2, BA.3, BA.4 and BA.5 are the first five branches descending from an original Omicron ancestor. And BA.2.12.1 is the 12th lineage to branch off from BA.2, and then the...
Tracking SARS-CoV-2 Omicron lineages using real-time reverse
WEBOct 14, 2023 · Omicron has become the dominant SARS-CoV-2 variant globally since December 2021, with distinct waves being associated with separate Omicron sublineages.
Omicron: a chimera of two early SARS-CoV-2 lineages
WEBMar 17, 2022 · Following the identification of a novel variant in South Africa on 24 November 2021, WHO designated Omicron (clade GRA, PANGO lineage B.1.1.529 and descendants BA.1 and BA.2) as the fifth...
Classification of Omicron (B.1.1.529): SARS-CoV-2 Variant of Concern
WEBNov 26, 2021 · Based on the evidence presented indicative of a detrimental change in COVID-19 epidemiology, the TAG-VE has advised WHO that this variant should be designated as a VOC, and the WHO has designated B.1.1.529 as a VOC, named Omicron.
Tracking Omicron and Other Coronavirus Variants
WEBLineage Status; Omicron: B.1.1.529: Identified in southern Africa in Nov. 2021 and spread around the world. Within a month it was dominant in the U.S. Delta: B.1.617.2