Conclusion: the disease feature is that most of them are middle aged, long courses low cure rate and death rate high.

结论：此病特点多为中年以上，病程长，治愈率低，病死率高。

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Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease.

赌博永远是美国人生活的一个共同特征，但很长一段时间以来，它被广泛地认为是一种罪恶，抑或是一种社会疾病。

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Disturbance of the sleep cycle, which gives the disease its name, is an important feature of the second stage of the disease.

该病名称提示的睡眠周期障碍是疾病第二阶段的一个重要特征。

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Twisted bones and bone degeneration are a feature of the disease and Professor Nussey said that it was only recognised in the early part of the 20th century.

BBC: What is rickets?

Ironically, this common feature makes testing whether a particular disease is bacterial more difficult.

ECONOMIST: Bugged by disease

Another key feature in making health care more affordable is early diagnosis, and better management of chronic disease via prevention efforts.

FORBES: Mike Huckabee