title: Isolation of a variant strain of foot-and-mouth disease virus (type O) during passage in partly immunized cattle.
mesh_terms: D000818:Animals; D005537:Aphthovirus / Q000302:isolation & purification*; D002417:Cattle; D002418:Cattle Diseases; D005536:Foot-and-Mouth Disease / Q000276:immunology; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines