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 …

In late 2022, various Omicron subvariants emerged and cocirculated worldwide. These
variants convergently acquired amino acid substitutions at critical residues in the spike …

In late 2023, several SARS-CoV-2 XBB descendants, notably EG. 5.1, were predominant
worldwide. However, a distinct SARS-CoV-2 lineage, the BA. 2.86 variant, also emerged …

Abstract Circulation of SARS-CoV-2 Omicron XBB has resulted in the emergence of XBB.
1.5, a new Variant of Interest. Our phylogenetic analysis suggests that XBB. 1.5 evolved from …

Abstract Introduction Nowadays, emerging SARS‐CoV‐2 Omicron, the novel highly mutated
VOC, has quickly spread as the dominant variant in over 190 countries worldwide through …

Due to the incessant emergence of various SARS-CoV-2 variants with enhanced fitness in
the human population, controlling the COVID-19 pandemic has been challenging …

The development of effective SARS-CoV-2 vaccines has been essential to control COVID-
19, but significant challenges remain. One problem is intramuscular administration, which …

Previous studies on the Omicron BA. 2 variant suggested that the virological characteristics
of BA. 2 are determined by the mutations in at least two different regions of the viral genome …

Summary The SARS-CoV-2 Omicron BA. 2.75 variant emerged in May 2022. BA. 2.75 is a
BA. 2 descendant but is phylogenetically distinct from BA. 5, the currently predominant BA. 2 …

In middle-late 2023, a sublineage of SARS-CoV-2 Omicron XBB, EG. 5.1 (a progeny of XBB.
1.9. 2), is spreading rapidly around the world. Here, we performed multiscale investigations …