Dr. Scott Commins describes alpha-gal allergy, which scientists believe is triggered by a tick bite and can cause a reaction to red meat. Dr. Commins talks about the symptoms of a reaction, how one can be tested for the allergy, and changes in diet recommended for patients who have alpha-gal. Dr. Scott Commins is an Associate Professor of Medicine in the Division of Rheumatology, Allergy, and Immunology and UNC Thurston Arthritis Research Center.