我叫小儿麻痹糖丸,又称脊髓灰质炎减毒活疫苗。1958年出生以来,每年为小宝宝们服务,使数亿儿童避免了跛脚之苦,脊髓灰质炎(简称脊灰)发病率逐年下降。但近年来的发病又有上升趋势,分析其原因,有生产、运输上的问题;主要的还是人们对我们了解不够,使用不当,使我们无用武之地,主要表现在:1、剂型不清。因为引发脊灰的病毒有三种型别,无交叉免疫性,所以我们三个兄弟各负其责,缺一不可。为了便于识别,老大为红色,老二为黄色,老三为绿色。为了服用方便,还有相互搭配的剂型,即老大、老二相结 My name is poliomyelitis pills, also known as live attenuated polio vaccine. Since its birth in 1958, babies have been served each year, leaving hundreds of millions of children without lameness, and the incidence of poliomyelitis has dropped year by year. However, there is an upward trend in incidence in recent years. The reasons for this are analyzed. There are problems in production and transportation. The main problem is that people do not know us enough and use inappropriately, making us useless. The main problems are as follows: 1. Because of the three types of viruses that cause polio, there is no cross-immunity, so the three of us are each responsible for the disease. In order to facilitate identification, the boss is red, the second is yellow, the third is green. In order to take convenience, as well as with each other dosage forms, that boss, second child phase