Health

Study: sensitivity of seafood rarely disappears

Study: sensitivity of seafood rarely disappears

A Canadian study of children and adults confirmed that fish and shellfish allergies rarely cure over time.

Allergy to fish and oysters and allergies to nuts are the main causes of allergic reactions, but little is known about how long seafood allergies continue, according to the researchers.

"Allergy to fish and oysters represents the majority of life-threatening allergies in adults, but research is much less than with other allergies," Dr. Moshe Ben Shushan to Reuters Health in an e-mail.

"Patients should understand the possible path of food allergies and so far there is no data on the natural solution to this sensitivity," says Ben Shushan, a specialist in pediatric susceptibility at the McGill University Medical Center in Montreal. "Our group, for the first time, Knowledge".

Data from Canada and the United States indicate that about 0.5% of adults and about 1% of children are allergic to fish, 1.4 to 2.5% of adults and between 0.5 and 2% of the children are allergic to oysters.

The researchers studied 63 patients, 37 of whom were allergic to fish, 25 were allergic to oysters and one to both, to determine how long this sensitivity would end up over time.

Participants in the study or their relatives completed questionnaires about the first and worst reaction to fish and oysters, and allergic symptoms such as skin rash, itching, colds, cough, abdominal pain, dizziness and difficulty breathing. The researchers also assessed their medical data.

After six years of follow-up of children and adults, the researchers discovered that the sensitivity of less than 1% of the participants disappeared each year.

"Allergy to seafood is rarely cured and the healing rate of fish or oyster allergies is less than 1 percent within a year of follow-up," Ben Shushan said.

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