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.

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

Viruses, Free Full-Text

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

Viruses, Free Full-Text

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

Immune memory from SARS-CoV-2 infection in hamsters provides variant-independent protection but still allows virus transmission

Attenuated fusogenicity and pathogenicity of SARS-CoV-2 Omicron variant

COVID-19: A Collection of Articles, Collections

Frontiers Prospects of animal models and their application in studies on adaptive immunity to SARS-CoV-2