In 8 out of 11 of some of the world's most affected countries, HIV prevalence in the age group 15 to 24 years has declined in the past five years.
在全世界大约11个受影响最严重的国家中，有8个国家在过去五年里15 -24岁年龄组中的艾滋病毒流行率得到下降。
At 58 centenarians per 100, 000 people (and rising), it has the world's highest proportion in this age group - more than five times the level of some developed countries.
没10万人中有58为百岁老人(且还在增长)，其为世界上该年龄群中最高的比例——超过某些发达国家的五倍之多。
This group of countries has achieved a nearly 70% decline in under-five mortality in just 20 years, dropping from 2.2 million in 1990 to just under 700 000 in 2010.
这一组国家在短短20年时间里，将五岁以下儿童的死亡率降低了近70%，从1990年的220万人减少到2010年的近70万人。
This group of countries has achieved a nearly 70% decline in under-five mortality in just 20 years, dropping from 2.2 million in 1990 to just under 700 000 in 2010.
这一组国家在短短20年时间里，将五岁以下儿童的死亡率降低了近70%，从1990年的220万人减少到2010年的近70万人。
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