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.

Infection, pathology and interferon treatment of the SARS-CoV-2 Omicron BA.1 variant in juvenile, adult and aged Syrian hamsters

SARS-CoV-2 Omicron virus causes attenuated disease in mice and hamsters

Broad immunity to SARS-CoV-2 variants of concern mediated by a SARS-CoV-2 receptor-binding domain protein vaccine - eBioMedicine

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

Viruses, Free Full-Text

SARS-CoV-2 Omicron BA.1 and BA.2 are attenuated in rhesus macaques as compared to Delta

Mutations in SARS-CoV-2: Insights on structure, variants, vaccines, and biomedical interventions - ScienceDirect

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

COVID-19: A Collection of Articles, Collections

Ex vivo and in vivo suppression of SARS-CoV-2 with combinatorial AAV/RNAi expression vectors - ScienceDirect

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

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