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预防腮腺炎的办法是,给儿童皮下注射0.1毫米的活性弱疫苗.在几个幼儿园里4,116个受免疫的儿童中,患了病的只有二十五个.这证明了,接种对流行性腮腺炎的效力是很高的.当流行性腮腺炎时疫流行时,免疫性就是是接种后十五个月以后,还是有很高的效力的.在这个时候以前(即时疫流行以前——译者注),没有接过种的十五个儿童中,病了七个,而接过种的一个都没病,即如是病了,那也要轻得多.从离开幼儿园的儿园的儿童发病率的统计中,就证实了接种的效力:763个未接种的儿童中病了12个,而接过种的573个儿童中连一
The prevention of mumps is the subcutaneous injection of 0.1 millimeter of live attenuated vaccine to children, with only 25 of 4,116 immunized children in several kindergartens, demonstrating that vaccination against the parotid gland The effectiveness of inflammation is very high. When the epidemic of mumps epidemic, the immunity is 15 months after inoculation, or high effectiveness. In this time ago (ie, before the epidemic Note) Of the 15 children who did not receive the disease, seven were sick and none of the children who received the disease were ill, that is, if they were ill, they were much lighter. Children from kindergartens who left the kindergarten Rate statistics confirmed the efficacy of vaccination: 12 out of 763 unvaccinated children, while 573 of the 577