title: [Significant contribution].
mesh_terms: D000818:Animals; D005537:Aphthovirus / Q000276:immunology; D005536:Foot-and-Mouth Disease / Q000517:prevention & control*; D014586:USSR; D014611:Vaccination / Q000662:veterinary; D014765:Viral Vaccines / Q000008:administration & dosage
chemical_list: D014765:Viral Vaccines
vernacular_title: Znachitel'nyĭ vklad.