Persistence of foot-and-mouth disease virus in butter and butter oil.
D000818:Animals; D005537:Aphthovirus / Q000302:isolation & purification*; D002079:Butter; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology; D005516:Food Microbiology; D005536:Foot-and-Mouth Disease / Q000209:etiology; D006863:Hydrogen-Ion Concentration; D009821:Oils; D013696:Temperature
D009821:Oils; D002079:Butter