Because according to a report in the Proceedings of the Royal Society, it's more cost effective to reduce the cases of a disease in hard-hit areas than to struggle to find a cure.

据《英国皇家学会学报》上发表的一篇报道，在传染病肆虐的地区，比起苦苦寻求治病良方，减少病患更划算。

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But it is hard for them to be diagnosed and even they were diagnosed, the cure is limited and expensive.

但它们却很难被诊断出来，即使诊断出来了，治疗方法也是有限的，费用也是昂贵的。

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The best cure for boredom is hard work.

治疗无聊最好的办法是努力工作。

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Moreover, once inflation expectations become entrenched, inflation is hard to cure except by strong monetary medicine.

ECONOMIST: Buttonwood: Curve balls | The

Prognosis for children diagnosed in the first 12-18 months of life is good, but if it comes back in older children it can be very hard to cure.

BBC: NEWS | Health | Skin cells 'fight child cancer'

To understand what the word "cure" means for HIV, it is helpful to review how people become infected and why a cure has been so hard to develop.

WSJ: Mark Siedner: About That Baby Who Was 'Cured' of HIV