Abstract Coronavirus Disease 2019 (COVID-19) has been the most severe public health
challenge in this century. Two years after its emergence, the rapid development and …

Recently, a large number of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) variants continuously emerged and posed a major threat to global public health. Among …

Continuous evolution of Omicron has led to a rapid and simultaneous emergence of
numerous variants that display growth advantages over BA. 5 (ref.). Despite their divergent …

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 continued evolution of SARS-CoV-2 has led to the emergence of several new Omicron
subvariants, including BQ. 1, BQ. 1.1, BA. 4.6, BF. 7, and BA. 2.75. 2. Here, we examine the …

The recent emergence of SARS-CoV-2 Omicron (B. 1.1. 529 lineage) variants possessing
numerous mutations has raised concerns of decreased effectiveness of current vaccines …

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 …

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 …

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant of
concern comprises several sublineages, with BA. 2 and BA. 2.12. 1 having replaced the …

Omicron Neutralization from Vaccines in China In this study, neutralization against the SARS-
CoV-2 omicron subvariants was reduced with both the inactivated and ZF2001 vaccines …