The symptoms resulting from IgE cross-reactivity to albumin include the cat-pork syndrome, the cat-milk syndrome, cat-dog sensitization, allergy during artificial insemination with BSA-containing materials, the pork-chicken syndrome, the horse milk-dander syndrome, the bird-egg/egg-feather syndrome, the cow ́s milk-dander-beef syndrome and horse meat allergy associated with allergy to hamsters, cats, and dogs (9, 12, 28, 31–34, 38, 39, 44, 64–87). The gene discussed is IGHE; the disease is Allergy.