口蹄疫(Foot and mouth disease; FMD)屬於高度傳染性病毒性疾病，具感受性之偶蹄動物感染本病常會造成巨大之經濟損失，口蹄疫病毒(Foot and mouth disease virus; FMDV)是小核糖核酸病毒科(Picornaviridae)中口瘡病毒屬(Aphthovirus)的成員，口蹄疫病毒可分為O、A、C、Asia-1、SAT1、SAT2、SAT3等7種血清型，各種血清型別間無交叉免疫保護效果。
Foot-and-mouth disease (FMD) is a highly contagious viral disease affecting cloven-hoofed animals that has a great potential for causing severe economic loss. FMD virus (FMDV) is a member of the genus Apthovirus in the family of Picornaviridae. There are seven serotypes of FMDV: O, A, C, Asia 1, and South African Territories (SAT) 1, 2, and 3. Infection with any one serotype does not confer immunity against another.
