Each state has its own immunization requirements for schoolchildren .

每个州都有其对于小学生的免疫要求。

In both regions there were a number of immunization campaigns organized as a response .

在两个地区都有相应的免疫运动被组织来进行应对。

But india only recently introduced a second dose of measles vaccine to its routine immunization schedules .

而且，印度刚在最近才引入第2剂的麻疹疫苗到常规免疫接种计划表中。

International donors have promised more than four billion dollars to the global alliance for vaccines and immunization .

国际捐助者已经承诺向全球疫苗与免疫联盟（以下简称gavi）捐助超过40亿美元资金。

Breast-feeding is a kind of natural immunization for the infant , providing the mother 's antibodies to protect and support the child 's immature immune system .

对于婴儿来说，母乳喂养相当于一种天然的免疫，由母亲的抗体来保护和支持婴儿不成熟的免疫系统。