Allergy to cat : Cat allergy in humans is an allergic reaction to one or more of the five known allergens produced by cats. Five cat allergens have been described in medical literature. The two major allergens are fel d 1 (a secretoglobin) and fel d 4 (a lipocalin). The minor allergens include fel d 2 (an albumin), fel d 3 (a cystatin), and cat iga.
Answered 12/9/2022
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