一类疫苗

最后一类疫苗含有经过改变已经无害的活的微生物。

A final type of vaccines contains living microorganisms that have been rendered harmless .

最基本的一类疫苗实际包含已被甲醛溶液杀死的致病微生物。

The most basic of class of vaccines actually contains disease-causing microorganisms that have been killed with a solution containing formaldehyde .

短缺的主要是“二类”疫苗。与政府强制要求接种的“一类”疫苗不同，“二类”疫苗是自愿选择接种、并且是自费的，是疾控中心的主要收入来源。

The shortages have mostly hit " Class II " vaccines which - unlike state-mandated Class I vaccines - are optional and paid out of pocket and were a main source of revenue for the CDCs .

文章着重讨论了在感染性cDNA的基础上所构建的一类新型基因疫苗&感染性克隆疫苗及其发展前景。

In the paper , FMD infective clone vaccine , based on infective cDNA clone , was discussed .

一类带有漏隙的疫苗的年龄结构SIR流行病模型

An age - structured SIR epidemic model with leaky vaccination