Background: Asymptomatic infections are potential sources of transmission for coronavirus
disease 2019, especially during the epidemic of the SARS-CoV-2 Omicron variant. We …

The Omicron variant of SARS-CoV-2 was detected in October 2021 and exhibited high
transmissibility, immune evasion, and reduced severity when compared to the earlier …

SARS‐CoV‐2 Omicron variant seemed to cause milder disease compared to previous
predominated variants. We aimed to conduct a meta‐analysis to assess the pooled …

Background Estimates of the severity of the SARS-CoV-2 omicron variant (B. 1.1. 529) are
crucial to assess the public health impact associated with its rapid global dissemination. We …

The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
emerged in the general population in the context of a relatively high immunity gained …

The Omicron variant was first detected in October 2021, which evolved from the original
SARS‐CoV‐2 strain and was found to possess many mutations. Immune evasion was one of …

Summary Background The SARS-CoV-2 Omicron variant became a global concern due to
its rapid spread and displacement of the dominant Delta variant. We hypothesized that part …

(Omicron) variant is of great importance to devising public health interventions. Increased
viral load has been reported as one cause of increased infectiousness in prior emergent …

Abstract The Omicron (B. 1.1. 529) variant was first reported in South Africa and rapidly
spread worldwide in early November 2021. This caused panic in various countries, so it is …

Abstract Objectives The SARS-CoV-2 Omicron variant has spread rapidly and has been the
dominant variant since 2022. The course of acute infection, in a vaccinated population, with …