Katsi allergy inokonzereswa ne glycoprotein yagara iripo mumatumbu ekatsi sebaceous glands. Fel d1. Kusiyana nekutenda kwakakurumbira, bvudzi rekati pacharo harisi allergenic.

Inowanikwa mu dander, asiwo mu mate, weti uye mune zvese, mune zvese zvakavanzika yekati (misodzi, mucus, etc.). Izvi protein rinogara pese panoenda katsi uye rinopararira kunyanya pakugeza. Maminitsi mashoma kusvika kumaawa mashoma mushure mekusangana nemhuka, kana munzvimbo yaivepo mhuka, allergic inopa zviratidzo zvekutanga.