Association of of IgE Can f 2 and dyspnea in pet allergic patients

The widespread presence of household pets makes it difficult to avoid exposure to their allergens. Currently, only a few cat and dog allergen components are commercially available: Can f 1, Can f 2, Fel d 4 (lipocalins), Can f 3, Fel d 2 (albumins) Can f5 (kalikrein), and the Fel d1 (secretoglobin). There are several known feline and canine allergen components not available commercially, including Can f 4, Can f 6-7, Fel d 3, and Fel d 5 through 8.1 Thus, a negative test result for allergen specific IgE (asIgE) to those components does not exclude an allergy to other canine and feline proteins.

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