[viruses]
   Realm Riboviria
     Order Nidovirales
       Suborder Tornidovirineae [monotypic]
         Family Tobaniviridae
           Subfamily Piscanivirinae
             Genus Oncotshavirus [monotypic]
               Subgenus Salnivirus [monotypic]
                 Chinook salmon nidovirus 1ᵀ