title: Snowdon Lecture 1993. New virus diseases: visible evolution.
authors.affiliation: Department of Infectious Diseases and Immunology, Veterinary Faculty, Utrecht University, The Netherlands.
authors.forename: M C
authors.initials: MC
authors.lastname: Horzinek
mesh_terms: D000818:Animals; D018018:Arterivirus / Q000145:classification / Q000502:physiology; D005075:Biological Evolution; D012328:RNA Viruses / Q000145:classification* / Q000502:physiology; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology*; D017003:Torovirus / Q000145:classification / Q000235:genetics*; D014777:Virus Diseases / Q000382:microbiology / Q000662:veterinary*