α-半乳糖综合征：一种由蜱虫叮咬引发的红肉过敏症

Alpha-gal syndrome (AGS) is an allergic condition that can develop after the bite of a tick. The condition involves a hypersensitivity response to an oligosaccharide, galactose-alpha-1,3-galactose, or commonly called alpha-gal.1 The alpha-gal molecule is found in the tissues of all nonprimate mammals.2 AGS is commonly referred to as a red meat allergy, but the allergic reaction can occur with any food or product containing alpha-gal. AGS is primarily associated with the lone star tick (amblyomma americanum), which is mainly found in the southeastern parts of the United States.5,6 However, AGS cases are being reported in northern and western areas of the United States due to climate change and the growing, migrating population of white-tailed deer, the lone star tick’s primary …