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  "path": "/article/why-do-older-people-have-fewer-seasonal-allergies/",
  "publishedAt": "2026-04-15T15:00:00.000Z",
  "site": "https://www.scientificamerican.com",
  "textContent": "Do declining immune systems explain the trend, or is something else going on? Experts explain",
  "title": "Why do older people have fewer seasonal allergies?"
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