当这一现象发生时应注意识别，并对推荐的免疫接种程序做出相应的调整。
It is important to recognize when this phenomenon occurs and to adjust the recommended immunization schedule accordingly.
就是说，我们使用的基于年龄和易感人群的方法和其它大多数推行季节性流感接种程序的国家是一致的。
This means that we use an age and risk group based approach in line with most other countries that have seasonal influenza vaccination programmes.
在墨西哥，研究对接种疫苗前腹泻和呕吐的死亡率与接种程序开始之后一年内死亡率做了比较。
In Mexico, the study compared death rates from diarrhoea and vomiting before the vaccine was introduced with the death rates in the year after the programme began.
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