There have been other studies which suggest that children born into a household that already has a dog or a cat are less likely to develop asthma.

另一项研究也表明那些出生在早已养着狗或者猫的家庭的孩子更不容易患哮喘。

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One possible health benefit of cat ownership: a 'pet protective effect' against allergies and asthma, which has surfaced in some studies.

养猫可能带来的一个健康好处是：一种能够抵御过敏和哮喘的“宠物保护效应”，一些研究已经指出了这一效应。

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"We feel most strongly about not living with a cat if you have asthma that's hard to control because that can lead to life-threatening situations," said Wood.

“如果你有难以控制过敏症的话，我们强烈觉得不要和猫住在一起，因为那可能导致危及生命的情况出现，”伍德说。

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It transpired that he had stayed at a friend's house, and used an asthma inhaler because he was allergic to his friend's cat.

ECONOMIST: The harm done