Over the next four years, the world's 12 highest-burden countries, all of which are in West Africa, will be able to implement special vaccination campaigns to immunize more than 48 million people.
在今后四年，全部位于西非的世界12个负担最重的国家将能够推行特别疫苗接种运动，为4800多万人进行免疫接种。
Over the next four years, the world's 12 highest-burden countries, all of which are in West Africa, will be able to implement special vaccination campaigns to immunize more than 48 million people.
在今后四年，全部位于西非的世界12个负担最重的国家将能够推行特别疫苗接种运动，为4800多万人进行免疫接种。
应用推荐