It found that 1.3 percent of American adults reported having CFS or something like it.

调查发现，1.3%的美国成年人报告患有慢性疲劳综合征或类似的疾病。

Some doctors still think CFS is a mental condition, experts and patients say.

专家和患者表示，一些医生仍然认为慢性疲劳综合征是一种精神疾病。

The findings led CDC's Dr. Elizabeth Unger to say that CFS " is not a rare illness."

这一发现导致美国疾控中心的伊丽莎白·昂格尔博士说，慢性疲劳综合征“并不是一种罕见的疾病”。

The tiredness and other symptoms of CFS can get worse after exercise, work, or other activity.

慢性疲劳综合征的疲劳和其他症状在锻炼、工作或其他活动后会变得更严重。

It said that CFS was more common in women than men.

报告称，慢性疲劳综合征的女性患者比男性患者更常见。

Chronic fatigue syndrome or CFS is a truly debilitating condition.

慢性疲劳综合症或 CFS 是一种真正使人衰弱的疾病。

What are the typical symptoms of CFS then?

M：那么CFS有哪些典型症状呢？

What is the difference between ordinary fatigue and CFS?

M：普通疲劳和CFS有什么区别？

People with chronic fatigue syndrome (CFS) suffer from at least six months of severe tiredness that is not helped by rest.

患有慢性疲劳综合症的人会遭受至少六个月的严重疲劳，而这种疲劳就算休息也无法缓解。

However, it is possible that only a percentage of people with CFS are diagnosed, said Dr. Daniel Clauw.

然而，丹尼尔·克劳博士说，可能只有一定比例的慢性疲劳综合征患者被诊断出来。

Are there many children patients of CFS?

M：CFS儿童患者多吗？

I am sorry to say that in children, CFS is poorly defined.

W：我很遗憾地说， 对于儿童，CFS 的定义并不明确。

Most studies of CFS in the pediatric age range have followed the CDC criteria.

大多数儿科年龄范围的慢性疲劳综合症研究都遵循疾病预防控制中心的标准。

Outside the United States, CFS appears to be less common, but it probably exists worldwide.

在美国以外，CFS 似乎不太常见，但它可能在全世界范围内存在。

Overall, CFS is more common in females than in males.

总体而言，慢性疲劳综合症在女性中比男性更常见。

Dr. Jennifer Ashton, what is the cause of CFS?

Jennifer Ashton 医生，CFS 的病因是什么？

The symptoms of CFS must have persisted or recurred during 6 or more consecutive months of illness and must not have predated the fatigue.

W：CFS 症状必须在连续 6 个月或更长时间患病期间持续存在或复发，并且不得在疲劳之前出现。

They were asked if a doctor or other health-care professional had ever told them they had myalgic encephalomyelitis, or CFS, and whether they still have it.

他们被问及是否有医生或其他医疗保健专业人员告诉过他们患有肌痛性脑脊髓炎，即慢性疲劳综合征，以及他们是否仍然患有这种疾病。

The cause of CFS has baffled researchers for decades, and the CDC estimates that approximately 90 percent of people with CFS have not been diagnosed.

W：CFS 的病因几十年来一直困扰着研究人员，CDC 估计大约 90% 的 CFS 患者尚未得到诊断。

I once read a report that says CFS is common in the United States, but the data are difficult to interpret because the various studies define CFS in different ways.

M：我曾经读过一份报告，说慢性疲劳综合症在美国很常见，但这些数据很难解释，因为各种研究对慢性疲劳综合症的定义不同。