title: Attenuation of foot-and-mouth disease virus type "O" by serial passages in goats.
mesh_terms: D000818:Animals; D005537:Aphthovirus / Q000472:pathogenicity*; D002020:Buffaloes; D005536:Foot-and-Mouth Disease / Q000517:prevention & control; D006041:Goats; D014611:Vaccination; D014774:Virulence