Viral aetiology of diseases of obscure origin.
D000818:Animals; D001172:Arthritis, Rheumatoid / Q000209:etiology; D003240:Connective Tissue Diseases / Q000209:etiology*; D007562:Creutzfeldt-Jakob Syndrome / Q000209:etiology; D003922:Diabetes Mellitus, Type 1 / Q000209:etiology; D006801:Humans; D007729:Kuru / Q000209:etiology; D008180:Lupus Erythematosus, Systemic / Q000209:etiology; D009103:Multiple Sclerosis / Q000209:etiology; D009369:Neoplasms / Q000209:etiology*; D009422:Nervous System Diseases / Q000209:etiology*; D010300:Parkinson Disease / Q000209:etiology; D011129:Polyradiculoneuropathy / Q000209:etiology; D014777:Virus Diseases / Q000150:complications*