Tropomyosin, the major allergen in dust mites, is also responsible for shellfish allergy.[10][11] Exposure to inhaled tropomyosins from dust mites is thought to be the primary sensitizer for shellfish allergy, an example of inhalant-to-food cross-reactivity.[12] Epidemiological surveys have confirmed correlation between shellfish and dust mite sensitizations.[13] An additional confirmation was seen in Orthodox Jews with no history of shellfish consumption, in that skin tests confirming dust mite allergy were also positive for shellfish tropomyosin.[10][13] In addition to tropomyosin, the proteins arginine kinase and hemocyanin seem to have a role in cross-reactivity to dust mites.[14]
A scanning electron micrograph of a female dust mite.
https://en.wikipedia.org/wiki/Dust_mite_allergy
above.
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