title: Systems of virus survival.
mesh_terms: D000257:Adenoviridae Infections / Q000382:microbiology; D000818:Animals; D001717:Birds; D007562:Creutzfeldt-Jakob Syndrome / Q000382:microbiology; D003588:Cytopathogenic Effect, Viral; D006561:Herpes Simplex / Q000276:immunology; D006562:Herpes Zoster / Q000276:immunology; D006801:Humans; D007108:Immune Tolerance; D007729:Kuru / Q000382:microbiology; D008216:Lymphocytic Choriomeningitis / Q000276:immunology; D008380:Marek Disease / Q000276:immunology; D008459:Measles virus / Q000254:growth & development; D011328:Prions / Q000276:immunology; D012897:Slow Virus Diseases / Q000382:microbiology; D014713:Viruses, Unclassified / Q000276:immunology; D014790:Visna-maedi virus / Q000254:growth & development
chemical_list: D011328:Prions