Background Differences in the clinical and radiologic characteristics of SARS-CoV-2
Omicron subvariants have not been well studied. Purpose To compare clinical disease …

Background Few reports have evaluated the effect of the SARS-CoV-2 variant and
vaccination on the clinical and imaging features of COVID-19. Purpose To evaluate and …

In this issue of Radiology, Lee et al (2) compared clinical and imaging outcomes of patients
infected with subvariants of Omicron, the older BA. 1/BA. 2 (n= 1269) versus newer BA. 5 (n …

Background CT manifestations of SARS-CoV-2 may differ among variants. Purpose To
compare the chest CT findings of SARS-CoV-2 between the Delta and Omicron variants …

Background The SARS-Cov-2 Omicron variant demonstrates rapid spread but reduced
disease severity. Studies evaluating lung imaging findings of Omicron infection versus non …

Rationale and Objectives The Omicron variant of COVID-19 is less severe than the ancestral
strain, leading to the potential for deaths in patients infected with the virus but who die of …

Objectives: To compare the clinical characteristics and chest CT findings of patients infected
with Omicron and Delta variants and the original strain of COVID-19. Methods: A total of 503 …

This study aimed to compare the clinical picture of COVID-19 in the initial and later period of
Omicron dominance and to identify populations still at risk. A retrospective comparison of the …

Background The genetic and pathogenic characteristics of SARS-CoV-2 have evolved from
the original isolated strains; however, the changes in viral virulence have not been fully …

Background Omicron has become the dominant variant of severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) globally. We aimed to compare the clinical and …