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Rebecca949 发表于 2013-11-6 11:03

VOA慢速英语2013.11.06

[audio]http://sound.yywz123.com/tingbbs/voa/voa20131106.mp3[/audio]



"In Benin last year, for the first time we used the vaccine, the new vaccine that has been produced for combating meningitis A epidemics in Benin and West Africa. So, we used that vaccine outside the cold chain for up to four days in district and health facility levels. And this is a big step to help with vaccination campaigns, especially in these areas where we do not have a ready cold chain."他说,"去年在贝林,我们第一次使用这些为预防贝林和西非脑膜炎疫情而生产的新疫苗.我们在该地区的卫生设施水平之下,在没有冷链的情况下使用这些疫苗长达4天.这对帮助疫苗接种活动是一个巨大的进步,特别是在没有现成冷链的这些地区."
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