ANTIGENIC DIFFERENCES AMONG AQUAREOVIRUSES CORRELATE WITH PREVIOUSLY ESTABLISHED GENOGROUPS

Five aquareoviruses, selected to include 1 from each of the 5 genogrou ps established by Lupiani et al. (1993; Virology 197:475-479), were co mpared by cross-neutralization and immunodot test procedures. Serologi cal ratios by cross-neutralization were extremely high, demonstrating that the 5 selected strains correspond to 5 different serogroups. On t he other hand, the ratios obtained from cross-immunodot test were much lower, and in some cases under 20. Results demonstrate that the serog roups determined by cross-neutralization correlate with the previously established genogroups of aquareoviruses.