ABSTRACT COVID-19 is a spectrum of clinical symptoms in humans caused by infection
with SARS-CoV-2. The B. 1.1. 529 Omicron variant is rapidly emerging and has been …

SARS-CoV-2 variants accumulating immune escape mutations provide a significant risk to
vaccine-induced protection against infection. The novel variant of concern (VoC) Omicron …

ABSTRACT The SARS-CoV-2 Omicron variant is characterized by substantial changes in
the antigenic structure of the Spike (S) protein. Therefore, antibodies induced by primary …

The severe acute respiratory distress syndrome coronavirus 2 (SARS-CoV-2) Omicron
variant is spreading rapidly, even in vaccinated individuals, raising concerns about immune …

Despite the remarkable efficacy of COVID-19 vaccines, waning immunity and the
emergence of SARS-CoV-2 variants such as Omicron represents a global health challenge …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron strain (as known
as B. 1.1. 529) was identified in Botswana and South Africa in early November 2021 and …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) breakthrough infections in
vaccinated individuals and reinfections in previously infected individuals have become …

The rapid spread of the SARS-CoV-2 Omicron (B. 1.1. 529) variant, including in highly
vaccinated populations, has raised important questions about the efficacy of current …

The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
exhibits reduced susceptibility to vaccine-induced neutralizing antibodies, requiring a boost …

The Omicron variant of SARS-CoV-2 has been shown to evade neutralizing antibodies
elicited by vaccination or infection. Despite the global spread of the Omicron variant, even …