Table 8.

Diagnosis of meat allergic reactions. Modified from [111].

Type of Meat Allergy	History	IgE	Major Allergen
Primary meat sensitivity in childhood	Immediate reactions to meat Often with pre-existing sensitivity to cow’s milk	Milk Relevant meat	Bos d 6
Pork–Cat Syndrome	Reactions to pork within 1 h. In some cases with additional reactions to beef In most cases pre-existing sensitization to cats	Pork Cat Beef Porcine	Fel d 7 Sus s 6
Delayed Anaphylaxis to Red Meat or the Alpha-Gal syndrome	Urticaria and/or anaphylaxis occurring 3–6 h after eating beef	Beef Lamb Pork	Alpha-gal