A recent discovery of an IgE antibody specific to galactose-α-1,3-galactose, which is a carbohydrate abundantly expressed on cells and tissues of beef, pork, and lamb, adds one more tool to aid the clinician in making the appropriate diagnosis. A link has been discovered between the bite of the Lone Star Tick (Amblyomma americanum) and the development of sensitivity to galactose-α-1,3-galactose.