The relative dynamics of infection with the Delta and Omicron SARS-CoV-2 variants in aged and young Syrian hamsters

Researchers demonstrated the relative pathogenicity of SARS-CoV-2 Omicron and Delta variants of concern in Syrian hamsters.

Clinical characteristics and host immunity responses of SARS-CoV-2 Omicron variant BA.2 with deletion of ORF7a, ORF7b and ORF8, Virology Journal

Frontiers Experimental Models of COVID-19

Omicron variant (B.1.1.529) and its sublineages: What do we know so far amid the emergence of recombinant variants of SARS-CoV-2? - ScienceDirect

Role of the humoral immune response during COVID-19: guilty or not guilty? - Mucosal Immunology

Pathogenicity of SARS-CoV-2 Omicron (R346K) variant in Syrian hamsters and its cross-neutralization with different variants of concern - eBioMedicine

The SARS-CoV-2 Omicron (B.1.1.529) variant exhibits altered pathogenicity, transmissibility, and fitness in the golden Syrian hamster model

Pathogenicity, transmissibility, and fitness of SARS-CoV-2 Omicron in Syrian hamsters

Reduced airborne transmission of SARS-CoV-2 BA.1 Omicron virus in Syrian hamsters

Omicron variant (B.1.1.529) and its sublineages: What do we know so far amid the emergence of recombinant variants of SARS-CoV-2? - ScienceDirect

Vaccines, Free Full-Text

Frontiers Heterologous immunity induced by 1st generation COVID-19 vaccines and its role in developing a pan-coronavirus vaccine

Virological characteristics of the novel SARS-CoV-2 Omicron variants including BA.2.12.1, BA.4 and BA.5