Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           ?"viruses"
             Realm Riboviria
               Phylum Negarnaviricota
                 Subphylum Polyploviricotina
                   Class Insthoviricetes [monotypic]
                     Order Articulavirales
                       Family Orthomyxoviridae
                         Genus Betainfluenzavirus [monotypic]
                           Influenza B virusᵀ
                             (Isolate) human influenza B/Hong Kong/330/2001 virus