Allergy Notes, Evidence-based Information by Board-certified Physicians

Cross-reacting allergens between fish, shellfish, arachnids, and insects

Seafood allergy in children linked to high rate of anaphylaxis (20%), shrimp is the most common cause

Parvalbumin content of fish species varies considerably - possibly contributing to variable allergenicity

A puzzle: an Orthodox Jewish patient with an allergy to shellfish. How is that possible?