Parents provided details on respiratory and allergic symptoms of their children, who were also tested for persistent wheezing and allergies.

通过父母提供孩子呼吸及过敏症状的详细情况，同时也对这些孩子进行持续的喘鸣及过敏检测。

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Additionally, their blood was tested for chemicals that have been implicated in the allergic cascade.

此外，他们的血液也进行了化学测试是否牵涉有过敏性级联。

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Even if you think you know what is causing the allergic reaction, you may need to be tested to find out the exact allergen.

即使你认为你知道什么是造成过敏反应，您可能需要进行测试，以找出确切的过敏原。

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At each of these stages, the researchers tested the nuts to assess how likely they were to trigger an allergic reaction.

BBC: New technique for safer peanuts