口蹄疫俗名“口疮”“辟癀”,是由口蹄疫病毒引起的偶蹄动物的一种急性、热性、高度接触性传染病。其特征为口腔黏膜、蹄部和乳房皮肤发生水疱。人感染上这种病毒,口腔和四肢也会出现水疱,造成饮食和讲话困难,并伴有口臭。口蹄疫病毒属于鼻病毒属,是目前所知病毒中最细微的一种。其最大颗粒直径为23纳米,最小颗粒直径为7～8纳米。目前已知口蹄疫病毒在全世界有七个主型 cA、O、 Foot-and-mouth disease, commonly known as “mouth sores” and “prey”, is an acute, hot, highly contagious disease of cloven-hoofed animals caused by foot-and-mouth disease virus. It is characterized by blisters on the oral mucosa, hoofs and breast skin. People infected with this virus also have blisters in their mouths and extremities, causing difficulty in eating and speaking, accompanied by bad breath. Foot-and-mouth disease virus belongs to the genus Rhinovirus, the smallest of the viruses known to date. The largest particle diameter of 23 nm, the smallest particle diameter of 7 to 8 nm. It is known that there are seven main types of foot-and-mouth disease virus in the world cA, O,