错误观点1有的家长认为,预防接种和普通打针没有多大的区别,如果孩子身体结实就不用预防接种了。纠正学前儿童正处于生长发育时期,对外界环境的适应能力和对病原体的抵抗能力都比较差,因此在学前儿童中传染病的发生率比成人高。目前危害小儿健康的传染病主要有麻疹、小儿麻痹症 Misconceptions 1 Some parents think there is not much difference between vaccination and ordinary injection, and if the child is healthy, no vaccination is needed. Pre-school children are in the period of growth and development, their ability to adapt to the external environment and their resistance to pathogens are relatively poor. Therefore, the incidence of infectious diseases among preschool children is higher than that of adults. The current infectious diseases endangering children’s health are mainly measles, polio