All

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 B04 Viruses D014780 +
  B04.820 RNA Viruses D012328 +
   B04.820.250 Flaviviridae D018067 +
    B04.820.250.700 Pestivirus D010576 +
     B04.820.250.700.400 Classical swine fever virus D006692 
 B04 Viruses D014780 +
  B04.909 Vertebrate Viruses D014712 +
   B04.909.777 RNA Viruses D012328 +
    B04.909.777.310 Flaviviridae D018067 +
     B04.909.777.310.700 Pestivirus D010576 +
      B04.909.777.310.700.400 Classical swine fever virus D006692