Allergic reactions to fish and shellfish are commonly reported in both adults and children.
It is generally recommended that individuals who have had an allergic reaction or positive skin tests to one species of fish to avoid all fish.
The same rule applies to shellfish.
Fish-allergic individuals should be cautious when eating away from home. They should avoid fish and seafood restaurants because of the risk of contamination in the food-preparation area of their "non-fish" meal from a counter, spatula, cooking oil, fryer, or grill exposed to fish.
In addition, fish protein can become airborne during cooking and cause an allergic reaction. Some individuals have had reactions from walking through a fish market.
Some Hidden Sources of Fish
Caponata, a traditional sweet-and-sour Sicilian relish, can contain anchovies.
Caesar salad dressings and steak or Worcestershire sauce often contain anchovies.
Surimi (imitation crabmeat) often contains fish.
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