1·Virgin-soil epidemics are those in which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless.
处女地流行病指的是那些风险人群以前没有接触过袭击他们的疾病，因此在免疫上几乎毫无防御能力的疾病。
2·Vaccination is by now a simple, safe and effective way to protect us from the diseases.
到目前为止，接种疫苗是一种简单、安全并有效的方式，可以保护我们免受疾病侵害。
3·They suffer the diseases of poor nutrition.
他们也患有营养不足的疾病。
4·B. timori, which also causes the diseases.
帝汶丝虫——也引起疾病。
5·But that does not mean the diseases are identical.
但是这并不表示这两种疾病可混为一谈。
6·All three of the diseases would be treatable today.
这三种疾病如今都能治愈。
7·Each of the diseases produced a distinct cluster.
每种疾病都有独一无二的簇。
8·That matters, because the diseases really are not the same.
这确实是一个问题，因为这两种疾病确实不一样。
9·Why are poor countries so vulnerable to the diseases of the rich?
为什么贫穷国家在富贵病面前如此脆弱？
10·Stress is the root cause of most of the diseases that shorten our life span.
压力是大部分缩短我们寿命的疾病的根源。