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Shellfish allergy is among the most common food allergies. " Shellfish " is a colloquial and fisheries term for aquatic invertebrates used as food , including various species of molluscs such as clams , mussels , oysters and scallops , crustaceans such as shrimp , lobsters and crabs , and cephalopods such as squid and octopus .
Approximately 1% of the population is estimated to suffer from shellfish allergy, [17] which is more common in teenage and adult life than very early childhood. [18] There is some evidence that shellfish intolerance exists in an unknown proportion of the population. The symptoms of this do not include the immune and respiratory symptoms of an ...
Shellfish allergy is the leading cause of food allergy in U.S adults. [31] As of 2018 six allergens have been identified to prawn alone; along with crab, it is the major culprit of seafood anaphylaxis. [13] In reference to it as one of the "Big 8" [50] or "major 14" allergens it is sometimes specified as a "crustacean shellfish" allergy, or ...
Fish allergy is an immune hypersensitivity to proteins found in fish.Symptoms can be either rapid or gradual in onset. The latter can take hours to days to appear. The former may include anaphylaxis, a potentially life-threatening condition which requires treatment with epinephrine.
Annual testing is often the practice for determining whether allergy to milk, egg, soy, and wheat have been outgrown, and the testing interval is extended to 2–3 years for allergy to peanut, tree nuts, fish, and crustacean shellfish. [94]
For instance, allergy to buckwheat flour, used for soba noodles, is more common in Japan than peanuts, tree nuts or foods made from soy beans. [99] Also, shellfish allergy is the most common cause of anaphylaxis in adults and adolescents particularly in East Asian countries like Hong Kong, Taiwan, Singapore, and Thailand. [95]
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.
Allergy immunotherapy can be administered orally (as sublingual tablets or sublingual drops), or by injections under the skin (subcutaneous). [52] [53] Immunotherapy contains a small amount of the substance that triggers the allergic reactions. [54] Ladders are also used for egg and milk allergies as a home-based therapy mainly for children.