In the developed world, the very old (age 80 +) is the fastest growing population group.

在发达国家，老年人(年龄80以上)是增长最快的人口群体。

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The health of prisoners is among the poorest of any population group and the apparent inequalities pose both a challenge and an opportunity for country health systems.

囚犯的健康是任何群体中健康情况最差的，这种明显的不平等现象对国家卫生系统既是挑战又是机遇。

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Clear focus on a population group vulnerable to HIV.

重点针对艾滋病易感的一个人群。

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Clear focus on a population group vulnerable to HIV.

重点针对艾滋病易感的一个人群。

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