Enlarge / A vector ecologist displays a vial of live lone star ticks. (credit: Getty | Ben McCanna) A little over a decade ago, researchers discovered that bites from lone star ticks could cause some people to develop a food allergy to meat and meat products—an allergic condition called alpha-gal syndrome (AGS), which can vary from mild to life-threatening. The condition is named after a carbohydrate called galactose-α-1,3-galactose (aka alpha-gal), which is commonly found on proteins in most mammals—with the important exception of primates, like humans.