SARS coronavirus 2 (SARS-CoV-2), the causative agent of COVID-19, emerged in China in
December 2019. Vaccines developed were very effective initially, however, the virus has …

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant of
concern, first identified in November 2021, rapidly spread worldwide and diversified into …

Summary Background Among the Omicron sublineages that have emerged, BA. 1, BA. 2,
BA. 5, and their related sublineages have resulted in the largest number of infections. While …

Abstract Emerging SARS-CoV-2 variants, particularly the Omicron variant and its
sublineages, continually threaten the global public health. Small molecule antivirals are an …

Successful severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection
requires proteolytic cleavage of the viral spike protein. While the role of the host …

Continuous emergence of the Omicron variant, along with its subvariants, has caused an
increasing number of infections, reinfections, and vaccine-breakthrough infections, seriously …

Summary Background The Omicron era of the COVID-19 pandemic commenced at the
beginning of 2022 and whilst it started with primarily BA. 1, it was latter dominated by BA. 2 …

The rapid spread and strong immune evasion of the SARS-CoV-2 Omicron subvariants has
raised serious concerns for the global COVID-19 pandemic. These new variants exhibit …

Summary Background Earlier Omicron subvariants including BA. 1, BA. 2, and BA. 5
emerged in waves, with a subvariant replacing the previous one every few months. More …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which was responsible for
the COVID-19 pandemic, efficiently spreads cell-to-cell through mechanisms facilitated by its …