世卫开始使用新的疫苗来预防小儿麻痹症。
Hints:
B.O.P.V. (bivalent oral polio vaccine)
Afghanistan
Carol Pandak
PolioPlus
Rotary International
trivalent
monovalent
The World Health Organization has begun to use a new vaccine against polio. Officials say it will become a major tool in the campaign to end a disease that mainly affects children under age 5. The new formulation is known as B.O.P.V., or bivalent oral polio vaccine. It was used for the first time i…
世界卫生组织已开始使用一种新型疫苗治疗脊髓灰质炎。脊髓灰质炎主要影响五岁以下儿童,世卫官员称该疫苗将成为根治脊髓灰质炎的一个主要工具。 这种新配方叫做双价口服脊髓灰质炎疫苗（B.O.P.V）。去年12月该疫苗首次用于阿富汗地区脊髓灰质炎的免疫接种。 参加根除脊髓灰质炎行动的卡罗尔•潘达克是服务组织“国际扶轮社”…