“Increased Binding Affinity of Omicron BA.4/5 SARS-CoV-2 Variants to Rabbit and Hare ACE2 Receptors: Implications for Interspecies Transmission”

https://pubmed.ncbi.nlm.nih.gov/38112468

The Omicron BA.4/5 and related SARS-CoV-2 variants have an increased binding affinity to rabbit and hare ACE2 due to a unique residue (Q34), suggesting a potential risk of interspecies transmission.