The short period from disease onset to death and reduced mortality from treatment with vitamin A suggest the need for rapid, field-based treatment early in the outbreak.

麻疹患者一旦发病，很快就会死亡，而补充维生素A的治疗方式可以降低死亡率，这二者说明在发病早期需要提供迅速的上门治疗服务。

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The field experiment showed that the mortality of the M. alternatus larvae treated by S. guani with B. bassiana was 61.1%, by S. guani was 40.8%, and by B. bassiana was 0.0%.

林间防治试验表明：肿腿蜂携带白僵菌使松墨天牛幼虫死亡率达到61.1%，而肿腿蜂使松墨天牛幼虫的林间致死率是40.8%，白僵菌的为0。

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The vast improvements made in the field of medicine have served to lengthen our life expectancy and to reduce the rate of infant mortality.

医学领域的大进步延长了我们的寿命，降低了婴儿死亡率。

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