"One of our big findings was that 2 in 5 kids who had allergies had a severe reaction or a life-threatening reaction," Gupta said.

“我们最大的发现之一是5个孩子中有2个曾有严重的过敏反应，甚至是致命的症状。”gupta说道。

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Every year these allergies cause about thirty thousand cases of anaphylaxis, a severe reaction that requires immediate treatment.

每年这些过敏会引起大约三万个过敏案例，这是一种需要立即就医的过敏反应。

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It is for that reason that desensitization to some substance to which an individual may be sensitive must be carried out very carefully and in such small doses that a severe reaction is not provoked.

正是由于这种原因，对某种可能引起个体敏感的物质，在进行脱敏时，必须谨慎从事，应当采用小剂量，以免激发严重反应。

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And it added in one case, a woman using black cohosh needed a liver transplantation after a particularly severe reaction.

BBC: Some women are using alternative therapies instead of HRT

After one severe reaction, he said, most people consistently avoid the offending food and do not experience another severe attack.

CNN: 'Allergic Girl' teaches how to eat out with allergies

Alpha-gal's reactions vary on a case-by-case basis, sometimes with a patient experiencing a severe reaction and other times nothing at all.

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