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我县于1984、1985、1986年连续3年实行了计划免疫保偿合同制(以下简称保偿制),入保对象为相应年份的0岁、1岁儿童。为了解该办法有无优越性,我们于1987年2月调查了入保率不同的10个村,对166名7个月~3岁儿童进行了锡克氏试验(以下简称ST)。在儿童基础免疫的四种疫苗中,百白破疫苗(DPT)接种针次多、反应较重,接种率往往最低,而且对幼儿接种一次不引起有效的白喉抗毒素保护水平,所以
In 1984, 1985 and 1986, the county implemented the Planned Contract on Immunization Indemnity (hereinafter referred to as the “Indemnification System”) for three years in succession. The insured persons were 0-year-old and 1-year-old children in corresponding years. To understand the advantages of this approach, we conducted a Sikh test of 166 children aged 7 months to 3 years (hereinafter referred to as ST) in February 1987 in 10 villages with different insured rates. Of the four vaccines based on childhood immunization, DPT vaccination took the second most frequently, responded more often with the lowest vaccination rates, and vaccination of young children did not evoke effective diphtheria antitoxin protection levels, so