title: Exposure of vaccinated bulls and  steers to airborne infection with foot-and-mouth disease.
mesh_terms: D000391:Air Microbiology; D000818:Animals; D005537:Aphthovirus / Q000302:isolation & purification; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology; D005536:Foot-and-Mouth Disease / Q000276:immunology*; D008297:Male; D010413:Penis / Q000382:microbiology; D010614:Pharynx / Q000382:microbiology; D012007:Rectum / Q000382:microbiology; D012463:Saliva / Q000382:microbiology; D012661:Semen / Q000382:microbiology; D013552:Swine; D013553:Swine Diseases / Q000276:immunology; D014611:Vaccination