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.

Reduced pathogenicity of the SARS-CoV-2 omicron variant in hamsters - ScienceDirect

A broadly neutralizing antibody protects Syrian hamsters against SARS-CoV-2 Omicron challenge

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

SARS‐CoV‐2 in animals: susceptibility of animal species, risk for animal and public health, monitoring, prevention and control - - 2023 - EFSA Journal - Wiley Online Library

Clinical outcomes associated with Omicron (B.1.1.529) variant and BA.1/BA.1.1 or BA.2 subvariant infection in southern California

A Heterologous Challenge Rescues the Attenuated Immunogenicity of SARS-CoV-2 Omicron BA.1 Variant in Syrian Hamster Model

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Characterization of SARS-CoV-2 Omicron BA.4 and BA.5 isolates in rodents

S-217622, a SARS-CoV-2 main protease inhibitor, decreases viral load and ameliorates COVID-19 severity in hamsters