It should be added that the evidence for the involvement of HBGA antigens in the infection of rabbits with Lagovirus europaeus GI–RHDV is provided by the results of studies in which it was shown by blocking with antibodies 1B8, 5H3 for VLP–RHD HBGA antigens that the sites of their association with these viruses is their outermost capsomer fragment, i.e., the epitope of the P2 subdomain occurring at the 326–331 and 338–342 amino acid sites of the VP60 protein of these viruses [161]. Here, HBG1 is linked to infection.