主持人的话如今,给孩子进行预防接种.已成为每个孩子成长过程中必不可少的一项内容。但对接种的原理,接种的途径及次数,父母们往往不甚了解,更有不少家长还想进一步知道为什么有的孩子注射后还发病?什么是正常反应?什么是异常反应?异常反应怎么预防、治疗?为此,我们在这一期中特约浙江医科大学、中华医学会的两位老师回答这些问题,目的就是为 The host’s words Now, giving vaccinations to children has become an integral part of every child’s growth. However, the principle of vaccination, ways and frequency of vaccination, parents often do not quite understand, many parents also want to know more about why some children also after the onset of injection? What is the normal reaction? What is the abnormal reaction? Prevention, treatment? To this end, we in this issue special Zhejiang Medical University, Chinese Medical Association, two teachers answer these questions, the purpose is to