One of his patients is Heller-Greenman, a 78-year-old New York art historian who spends summers on Martha’s Vineyard. Unlike some other food allergies, which occur soon after eating, these reactions hit hours later. People with the syndrome can experience symptoms including hives, nausea, vomiting, diarrhea, severe stomach pain, difficulty breathing, dizziness and swelling of the lips, throat, tongue or eye lids. Researchers used that information to estimate the number of people with the allergy - 450,000. The survey found nearly half had never heard of alpha-gal syndrome, and only 5% said they felt very confident they could diagnose it. primary care doctors and health professionals. The second study was a survey last year of 1,500 U.S. They noted the number of people testing positive rose from about 13,000 in 2017 to 19,000 in 2022.Įxperts say cases may be up for a variety of reasons, including lone star ticks’ expanding range, more people coming into contact with the ticks or more doctors learning about it and ordering tests for it.īut many doctors are not. commercial lab looking for alpha-gal antibodies. One of the studies released Thursday examined 2017-2022 test results from the main U.S. cases have been in the eastern end of New York’s Long Island.) They tied it to the lone star tick, which despite its Texas-themed name is most common in the eastern and southern U.S.
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