我们从广西疾病预防和控制中心获得了1994年至2004年伤寒肠热病发病率和死亡率的数据。

Data on morbidity and mortality caused by enteric fever between 1994 and 2004 were extracted from the Guangxi Center for Disease Control and Prevention.

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它们的婴儿出生死亡率较高、人口平均寿命较短，因为它们没有足够的资金用以对疾病进行预防和控制，也无法为病人提供适当治疗。

Infant mortality is higher and life spans shorter because they don't have enough to immunize against diseases, prevent them from spreading, and cure the sick.

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疾病控制和预防中心最近发布的资料表明近三年来早产的比例连续在下降并在2009年下降到占总出生率的12.18%。

The Centers for Disease Control and Prevention released data recently showing that in 2009 the preterm birth rate declined, for the third year in a row, to 12.18 percent of all births.

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