Virus genes and diseases.
D002493:Central Nervous System Diseases / Q000209:etiology; D005814:Genes, Viral; D006801:Humans; D007105:Immune Complex Diseases / Q000209:etiology; D009369:Neoplasms / Q000209:etiology; D009858:Oncogenic Viruses; D014777:Virus Diseases / Q000150:complications / Q000517:prevention & control