The first dominant SARS‐CoV‐2 Omicron variant BA. 1 harbours 35 mutations in its Spike
protein from the original SARS‐CoV‐2 variant that emerged late 2019. Soon after its …

Abstract Since SARS-CoV-2 BA. 5 (Omicron) emerged and spread in 2022, Omicron
lineages have markedly diversified. Here we review the evolutionary trajectories and …

Abstract In late 2022, SARS-CoV-2 Omicron subvariants have become highly diversified,
and XBB is spreading rapidly around the world. Our phylogenetic analyses suggested that …

The Omicron lineage of SARS-CoV-2, which was first described in November 2021, spread
rapidly to become globally dominant and has split into a number of sublineages. BA. 1 …

After the global spread of the SARS-CoV-2 Omicron BA. 2, some BA. 2 subvariants,
including BA. 2.9. 1, BA. 2.11, BA. 2.12. 1, BA. 4, and BA. 5, emerged in multiple countries …

Soon after the emergence and global spread of the SARS-CoV-2 Omicron lineage BA. 1,
another Omicron lineage, BA. 2, began outcompeting BA. 1. The results of statistical analysis …

Recently, the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) Omicron
variant (B. 1.1. 529) was first identified in Botswana in November 2021. It was first reported …

On 24 th November 2021, the sequence of a new SARS-CoV-2 viral isolate Omicron-B. 1.1.
529 was announced, containing far more mutations in Spike (S) than previously reported …

Summary The coronavirus disease 2019 (COVID-19) pandemic continues worldwide with
many variants arising, some of which are variants of concern (VOCs). A recent VOC, omicron …

Summary Recently emerged SARS-CoV-2 Omicron subvariant, BA. 2.75, displayed a growth
advantage over circulating BA. 2.38, BA. 2.76, and BA. 5 in India. However, the underlying …