卫生署将于 2007 年 2 月推出新的「儿童免疫接种计划,小朋友日后会注射四合一新疫苗(DTaP-IPV),取代以往的三合一防疫针。新疫苗可同时预防白喉、破伤风、百日咳和小儿麻痹症,注射次数不但减少,疫苗副作用亦会减低。
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与每年的流感疫苗不同的是,这种新疫苗提前上市了。
The new vaccine, which is different from the annual flu vaccine, is available ahead of expectations.
需要几个月是因为生产新疫苗过程涉及许多连续步骤,并且每个步骤都需要一定的时间去完成。
These months are needed because the process of producing a new vaccine involves many sequential steps, and each of these steps requires a certain amount of time to complete.
关键的资金缺口存在于免疫联盟以及全球脊髓灰质炎和麻疹项目,同时生产新疫苗的研发需要更多支持。
Critical funding gaps exist at GAVI and in the global polio and measles programs, and more support is needed for the research and development necessary to produce new vaccines.
So, every time you're exposed to a new vaccine or a new antigen you go through this primary response before you have the secondary response.
所以,每当你接触到新疫苗或是新抗原,在再次免疫之前,机体将会经历这样的初次免疫过程
And that's a new approach to producing vaccines.
这就是制造疫苗的新方法
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