[Antigenic characteristics of morbillivirus isolates from Baikal seals].

Four morbillivirus strains were isolated from the Baikal seals Phoca sibirica. The antigen difference between these strains was studied using ELISA with different immune sera and monoclonal antibodies. The assay data indicated three different antigen variants of morbillivirus. The four strains were found to circulate over the Baikal seal population during epizootic.