Trout, Rainbow trout

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Code: f204
Latin name: Oncorhynchus mykiss
Source material: Fish muscle
Family: Salmonidae
All Pacific salmon belong to the genus Oncorhynchus.

Allergen Exposure

Eaten cooked, raw, smoked or marinated.

Potential Cross-Reactivity

Species within groups of fish, like Gadiformes (examples: codfish and hake) and Scombroid fishes (examples: mackerel and tuna) seem to share allergenic components. The overlap of allergen specificity between the groups seems to be moderate or even small.

Clinical Experience

IgE-mediated reactions
Atopic dermatitis has been seen in patients with IgE antibodies to trout.
 
Review
All Pacific salmon belong to the genus Oncorhynchus, the same as the Rainbow trout. King, Coho, Pink and Chub are major species caught outside the North American west coast. Several species are farmed in various parts of the world.
 
Clinical experience
de Martino et al. (1) found some cod-sensitive children to have IgE antibodies to trout. IgE antibodies to trout were also measured in a group of patients suffering from atopic dermatitis using Pharmacia CAP System™ (2), and in food-allergic children (3).

References

  1. de Martino, M; Novembre, E; Galli, L; de Marco, A; Botarelli, P; Marano, E; Vierucci, A. Allergy to different fish species in cod-allergic children: In vivo and in vitro studies. J Allergy Clin Immunol; 1990; 86: 909-914.
  2. Lindqvist, A; Ikezawa, Z.; Tanaka, A; Yman, L. Seafood specific IgE in atopic dermatitis. Ann Allergy; 1993;70:58.
  3. Matsumaru, S; Artia, M et al. Clinical evaluation of Pharmacia CAP System new allergens for fish, vegetables, fruits and grains. Jap Soc Ped Allergol; 1992.

 

As in all diagnostic testing, the diagnosis is made by the physican based on both test results and the patient history.