Studies show that if one parent has an allergy, there is a one-in-three chance a child will have one; if both parents have one, the chances rise to two in three.
根據調查，父母一方有過敏疾病，孩子有過敏疾病的機率是四分之一；父母雙方都有則孩子過敏的機率在一半以上。