FMD is a highly contagious illness affecting artiodactyls (animals with an even number of toes per foot). It can be transmitted through the air, so infections spread very rapidly.
口蹄疫是偶蹄類動物間一種傳染性極強的疾病，可以藉由空氣傳染，如果養豬場中有一頭髮病，其餘豬隻馬上受到感染。