中国对全国儿童实行计划免疫，控制和防治传染病。
To control and prevent infectious diseases, China has an immunity program for all children.
国家对严重危害养殖业生产和人体健康的动物疫病实行计划免疫制度，实施强制免疫。
The state practises a system of immunization planning for execution of compulsory immunization against animal epidemics which cause serious damage to the breeding production and human health.
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