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✖️ A Tick Bite Can Cause a Meat Allergy
Scientists are reporting the rapid spread worldwide of α-gal syndrome—an unusual food allergy that can develop after bites from certain ticks.
During a bite, the carbohydrate α-gal in the parasite's saliva enters the bloodstream and triggers the production of IgE antibodies. As a result, whenever the body comes into contact with the α-gal molecule—which is also found in mammal meat, dairy products, gelatin, and medications containing animal-derived ingredients—the immune system may attack it. Symptoms can include stomach pain, vomiting, hives, swelling, or difficulty breathing. At least two people worldwide have already died as a result of this allergy.
⏳ The syndrome's most unusual feature is the delayed reaction, which can take up to eight hours. Someone may eat a steak in the evening and wake up in the middle of the night with an attack, without connecting it to dinner.
Scientists believe that α-gal-containing fat molecules from meat first travel through the intestines and lymphatic system, gradually breaking down into particles that can seep into tissues and trigger an immune response.
🌐 In certain areas of Australia, the syndrome affects more than 700 people per 100,000 residents, and since 2020, the number of suspected cases has been growing by around 22% each year. In the United States, estimates suggest that up to 450,000 people may be affected.
The increase in cases has been linked to climate warming, which is expanding tick habitats, as well as to growing deer populations—the main hosts of these parasites. There is currently no cure, but the syndrome is not always chronic. After several years without tick exposure, antibody levels may fall, and some people can gradually reintroduce meat into their diet.
@hiaimediaen
