[viruses]
   Order Herpesvirales
     Family Herpesviridae
       Subfamily Alphaherpesvirinae
         Genus Mardivirus
           1 Anatid alphaherpesvirus 1
           2 Columbid alphaherpesvirus 1
           3 Gallid alphaherpesvirus 2ᵀ
           4 Gallid alphaherpesvirus 3
           5 Meleagrid alphaherpesvirus 1
           6 Spheniscid alphaherpesvirus 1