脊髓灰质炎(简称脊灰)是由病毒引起的急性传染病。此病临床表现为弛缓性瘫痪,以小儿多见,又称小儿麻痹或婴儿瘫。近几年来,我国普遍实行计划免疫,口服减毒活疫苗,保护率达90%以上,基本控制了大流行,但在某些地区仍出现大量散发病儿,甚至局部暴发流行。因此,临床医生应 Polio (referred to as polio) is an acute infectious disease caused by the virus. The clinical manifestations of the disease flaccid paralysis, more common in children, also known as polio or infantile paralysis. In recent years, China has practiced a planned immunization and live attenuated oral vaccine, with a protection rate of over 90%, basically controlling the pandemic. However, in some areas, a large number of sick children are still emerging and even local outbreaks are endemic. Therefore, the clinician should