而癌症就不是：因为它既不是大部分由感染引起，也不是新病。
Cancer cannot: it is not by and large caused by infection, and neither is it new.
不要把它和网球肘跟高尔夫球肘(肌腱类疾病)混淆，这种新病是由肘部的神经引起的。
Not to be confused with tennis or golfer's elbow (forms of tendonitis), this new diagnosis stems from the nerves that run through the elbow.
然而，就好比医生面对一位患了新病、症状奇特的病人一样，他们的行动在事后看来，似乎经常招致相反的效果。
But like a doctor facing a patient with a new disease and strange symptoms, they often acted in ways that, with the benefit of hindsight, appeared counterproductive.
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