| (subclass ViralDisease InfectiousDisease) | Mid-level-ontology.kif 5947-5947 | Viral disease is a subclass of infectious disease |
| (subclass HemorrhagicFever ViralDisease) | WMD.kif 1119-1119 | Hemorrhagic fever is a subclass of viral disease |
| (subclass VenezuelanEquineEncephalitis ViralDisease) | WMD.kif 1408-1408 | Venezuelan equine encephalitis is a subclass of viral disease |
| (subclass RiftValleyFever ViralDisease) | WMD.kif 1423-1423 | Rift valley fever is a subclass of viral disease |
| (subclass Influenza ViralDisease) | WMD.kif 1447-1447 | Influenza is a subclass of viral disease |
| (subclass Hepatitis ViralDisease) | WMD.kif 1777-1777 | Hepatitis is a subclass of viral disease |
| (subclass TickBorneEncephalitis ViralDisease) | WMD.kif 2036-2036 | Tick borne encephalitis is a subclass of viral disease |
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