Cross-reactivity « Back to Glossary IndexAn immune response in which antibodies react to similar proteins from different sources. Related Articles: Mado’s Instructional LibraryGoat Milk vs. Cow Milk FormulaGlossary: Oral Allergy Syndrome (OAS) / Pollen-Food Syndrome [OAS,PFAS]A type of food allergy where fresh fruits, vegetables, or nuts cause itching or tingling in the mouth due to cross-reactivity with pollen allergens.« Back to Glossary Index