The Viruses
Count: [g] 3o;73f;289g;1903s
   The RNA Viruses
  Count: [g] 2o;38f;147g;1053s
     The Negative Stranded ssRNA Viruses
    Count: [g] 1o;7f;31g;214s
       Genus Deltavirus
      Count: 1s
         1 Hepatitis delta virusᵀ
        Count: -