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Martha's Vineyard and Midwest ERs See Alpha-Gal Allergy Surge

More than 500 cases were confirmed last year as a growing lone star tick population forces dietary shifts and increases vegan options on the island.

  • Martha's Vineyard saw 523 positive cases of alpha-gal syndrome out of 1,254 tests reported in 2025, affecting residents with a meat allergy.
  • The rise followed warmer temperatures and expanding lone star tick populations that spread the sugar molecule alpha-gal causing allergic reactions.
  • Residents and businesses responded by avoiding red meat and dairy, creating vegan menus, and selling plant-based substitutes amid growing community concern.
  • A man in his late fifties who previously worked as a chef experienced anaphylactic shock in 2020 after consuming a steak meal, displaying severe allergic reactions such as widespread hives and difficulty breathing.
  • The increase signals broader spread of alpha-gal syndrome across the U.S. linked to climate change, prompting calls for prevention and awareness in tick-infested areas.
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mvmagazine.com broke the news in on Friday, June 6, 2025.
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