Occupational Inhalant Allergy to Pork followed by Food Allergy to Pork and Chicken: Sensitization to Hemoglobin and Serum Albumin

Abstract

We report a case of confirmed occupational inhalant allergy due to pork followed by food allergy to pork and 3 years later by food allergy to chicken. Porcine and chicken hemoglobin were found to be cross-reactive allergens. Cross-reactivity between porcine and chicken serum albumin was possibly linked to a prior sensitization to cat serum albumin.