title: [Genetic markers and their significance in virological research].
mesh_terms: D000818:Animals; D006564:Herpesviridae / Q000472:pathogenicity*; D011558:Herpesvirus 1, Suid / Q000145:classification / Q000472:pathogenicity*; D009522:Newcastle disease virus / Q000145:classification / Q000472:pathogenicity*; D011995:Recombination, Genetic; D014765:Viral Vaccines; D014774:Virulence
chemical_list: D014765:Viral Vaccines
vernacular_title: Markery genetyczne i ich znaczenie w badaniach wirusologicznych