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This file is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the file is in the public domain.
A food allergy is an abnormal immune response to food.The symptoms of the allergic reaction may range from mild to severe. They may include itchiness, swelling of the tongue, vomiting, diarrhea, hives, trouble breathing, or low blood pressure.
Shellfish allergies are highly cross reactive, but its prevalence is much higher than that of fish allergy. 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]
These affect the most people and the proteins are commonly found in other ingredients. They account for about 90% of food allergies. [5] The main eight are: Milk – A milk allergy is different from lactose intolerance in that the reaction is caused typically by casein, a protein found in milk. Eggs; Fish; Crustacean shellfish; Tree nuts
Two Texas parents are on a mission to raise awareness about food allergies after the death of their 23-year-old daughter.
An oral food challenge is a method for determining if a person has a specific food allergy. It involves giving increasing amounts of a food and watching to see if an allergic reaction occurs. They are potentially dangerous.
Oral allergy syndrome (OAS) or pollen-food allergy syndrome (PFAS) is a type of allergy classified by a cluster of allergic reactions in the mouth and throat in response to eating certain (usually fresh) fruits, nuts, and vegetables. It typically develops in adults with hay fever. [1] It is not usually serious. [2]
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