title: An early stage in the comparison of methods of modification of a field strain of foot-and-mouth disease, type A (Turkey 19-64).
mesh_terms: D000818:Animals; D005537:Aphthovirus; D002417:Cattle; D002642:Chick Embryo; D051379:Mice; D014765:Viral Vaccines / Q000592:standards*; D014774:Virulence
chemical_list: D014765:Viral Vaccines