Cod (family Gadidae) is an important commercial fish of the northwest Atlantic, found in the waters of Canada, Greenland, and North Carolina. The main allergenic component of cod is the muscle protein parvalbumin (Gad c1), which is heat-stable. Contact with the cod allergen can cause allergic reactions of varying severity, including anaphylaxis.
Cod allergy is common among the population, especially in pediatric groups and regions with high fish consumption. Symptoms may include skin manifestations, gastrointestinal involvement, respiratory symptoms, and severe anaphylaxis. Cod parvalbumin shows cross-reactivity with allergens from other fish species, which is important to consider in diagnosis and treatment.
FEIA (Fluorescence Enzyme Immunoassay) – a fluorescent enzyme immunoassay that allows quantitative determination of cod allergen levels in blood serum.
Please note that the research method and reference values may vary depending on the equipment and test systems used.